{"title":"Breakthrough Photography","description":null,"products":[{"product_id":"breakthrough-dark-cpl-67mm","title":"Breakthrough Photography 67mm X4 Dark Circular Polarizer 6-Stop Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Dark Circular Polarizer 6-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. \u003cmeta charset=\"utf-8\"\u003eThe X4 Dark CPL combines the benefits of Neutral Density (ND) and Circular Polarizer (CPL) filters in one compact, high-quality filter \u003cmeta charset=\"utf-8\"\u003esuccessfully eliminating vignetting down to 16mm. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability. \u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCombines ND \u0026amp; CPL for enhanced outdoor photography\u003c\/li\u003e\n\u003cli\u003eEliminates vignetting down to 16mm on full-frame cameras\u003c\/li\u003e\n\u003cli\u003eMulti-coated coating reduces reflections and improves image contrast\u003c\/li\u003e\n\u003cli\u003eRounded design ensures full image capture with minimal light loss\u003c\/li\u003e\n\u003cli\u003eStreamlines workflow by replacing the need to stack multiple filters\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e67mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eDarkCPL-6-67mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 67mm X4 Dark Circular Polarizer 6-Stop Filter\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176738226221,"sku":"35290","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35290_DarkCPL-6-67mm_01_Hero.jpg?v=1745967831"},{"product_id":"breakthrough-dark-cpl-62mm","title":"Breakthrough Photography 62mm X4 Dark Circular Polarizer 6-Stop Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Dark Circular Polarizer 6-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. \u003cmeta charset=\"utf-8\"\u003eThe X4 Dark CPL combines the benefits of Neutral Density (ND) and Circular Polarizer (CPL) filters in one compact, high-quality filter \u003cmeta charset=\"utf-8\"\u003esuccessfully eliminating vignetting down to 16mm. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability. \u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCombines ND \u0026amp; CPL for enhanced outdoor photography\u003c\/li\u003e\n\u003cli\u003eEliminates vignetting down to 16mm on full-frame cameras\u003c\/li\u003e\n\u003cli\u003eMulti-coated coating reduces reflections and improves image contrast\u003c\/li\u003e\n\u003cli\u003eRounded design ensures full image capture with minimal light loss\u003c\/li\u003e\n\u003cli\u003eStreamlines workflow by replacing the need to stack multiple filters\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e62mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eDarkCPL-6-62mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 62mm X4 Dark Circular Polarizer 6-Stop Filter\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176738291757,"sku":"35283","price":189.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35283_DarkCPL-6-62mm_01_Hero.jpg?v=1745966659"},{"product_id":"breakthrough-dark-cpl-52mm","title":"Breakthrough Photography 52mm X4 Dark Circular Polarizer 6-Stop Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Dark Circular Polarizer 6-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. \u003cmeta charset=\"utf-8\"\u003eThe X4 Dark CPL combines the benefits of Neutral Density (ND) and Circular Polarizer (CPL) filters in one compact, high-quality filter \u003cmeta charset=\"utf-8\"\u003esuccessfully eliminating vignetting down to 16mm. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability. \u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCombines ND \u0026amp; CPL for enhanced outdoor photography\u003c\/li\u003e\n\u003cli\u003eEliminates vignetting down to 16mm on full-frame cameras\u003c\/li\u003e\n\u003cli\u003eMulti-coated coating reduces reflections and improves image contrast\u003c\/li\u003e\n\u003cli\u003eRounded design ensures full image capture with minimal light loss\u003c\/li\u003e\n\u003cli\u003eStreamlines workflow by replacing the need to stack multiple filters\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e52mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eDarkCPL-6-52mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 52mm X4 Dark Circular Polarizer 6-Stop Filter\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176738390061,"sku":"35269","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35269_DarkCPL-6-52mm_01_Hero.jpg?v=1745966341"},{"product_id":"breakthrough-dark-cpl-49mm","title":"Breakthrough Photography 49mm X4 Dark Circular Polarizer 6-Stop Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Dark Circular Polarizer 6-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. \u003cmeta charset=\"utf-8\"\u003eThe X4 Dark CPL combines the benefits of Neutral Density (ND) and Circular Polarizer (CPL) filters in one compact, high-quality filter \u003cmeta charset=\"utf-8\"\u003esuccessfully eliminating vignetting down to 16mm. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability. \u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. 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Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability. \u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCombines ND \u0026amp; CPL for enhanced outdoor photography\u003c\/li\u003e\n\u003cli\u003eEliminates vignetting down to 16mm on full-frame cameras\u003c\/li\u003e\n\u003cli\u003eMulti-coated coating reduces reflections and improves image contrast\u003c\/li\u003e\n\u003cli\u003eRounded design ensures full image capture with minimal light loss\u003c\/li\u003e\n\u003cli\u003eStreamlines workflow by replacing the need to stack multiple filters\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e46mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eDarkCPL-6-46mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 46mm X4 Dark Circular Polarizer 6-Stop Filter\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176738488365,"sku":"35248","price":189.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35248_DarkCPL-6-46mm_01_Hero.jpg?v=1745965531"},{"product_id":"breakthrough-nd-3-stop-82mm","title":"Breakthrough Photography 82mm X4 Solid Neutral Density 0.9 Filter - 3 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 3-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 ND\u003c\/strong\u003e delivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e82mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND3-82MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 82mm X4 Solid Neutral Density 0.9 Filter - 3 Stop\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003eLimited 25-Year Manufacturer Warranty\u003cbr\u003e\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176738521133,"sku":"35402","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35402_X4-ND3-82MM_01_Hero.jpg?v=1745601197"},{"product_id":"breakthrough-nd-3-stop-77mm","title":"Breakthrough Photography 77mm X4 Solid Neutral Density 0.9 Filter - 3 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 3-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 ND\u003c\/strong\u003e delivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. 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Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e77mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND3-77MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 77mm X4 Solid Neutral Density 0.9 Filter - 3 Stop\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003eLimited 25-Year Manufacturer Warranty\u003cbr\u003e\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176738783277,"sku":"35395","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35395_X4-ND3-77MM_01_Hero.jpg?v=1745601291"},{"product_id":"breakthrough-nd-3-stop-72mm","title":"Breakthrough Photography 72mm X4 Solid Neutral Density 0.9 Filter - 3 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 3-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 ND\u003c\/strong\u003e delivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e72mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND3-72MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 72mm X4 Solid Neutral Density 0.9 Filter - 3 Stop\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003eLimited 25-Year Manufacturer Warranty\u003cbr\u003e\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176738816045,"sku":"35388","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35388_X4-ND3-72MM_02_Hero.jpg?v=1745601517"},{"product_id":"breakthrough-nd-3-stop-67mm","title":"Breakthrough Photography 67mm X4 Solid Neutral Density 0.9 Filter - 3 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 3-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 ND\u003c\/strong\u003e delivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e67mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND3-67MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 67mm X4 Solid Neutral Density 0.9 Filter - 3 Stop\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003eLimited 25-Year Manufacturer Warranty\u003cbr\u003e\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176738848813,"sku":"35381","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35381_X4-ND3-67MM_01_Hero.jpg?v=1745601723"},{"product_id":"breakthrough-nd-3-stop-62mm","title":"Breakthrough Photography 62mm X4 Solid Neutral Density 0.9 Filter - 3 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 3-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 ND\u003c\/strong\u003e delivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e62mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND3-62MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 62mm X4 Solid Neutral Density 0.9 Filter - 3 Stop\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003eLimited 25-Year Manufacturer Warranty\u003cbr\u003e\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176738979885,"sku":"35374","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35374_X4-ND3-62MM_01_Hero.jpg?v=1745601919"},{"product_id":"breakthrough-nd-3-stop-58mm","title":"Breakthrough Photography 58mm X4 Solid Neutral Density 0.9 Filter - 3 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 3-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 ND\u003c\/strong\u003e delivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:58mm\u003c\/h4\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND3-58MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 58mm X4 Solid Neutral Density 0.9 Filter - 3 Stop\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003eLimited 25-Year Manufacturer Warranty\u003cbr\u003e\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739012653,"sku":"35367","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35367_X4-ND3-58MM_01_Hero.jpg?v=1745602093"},{"product_id":"breakthrough-nd-3-stop-52mm","title":"Breakthrough Photography 52mm X4 Solid Neutral Density 0.9 Filter - 3 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 3-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 ND\u003c\/strong\u003e delivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e52mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND3-52MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 52mm X4 Solid Neutral Density 0.9 Filter - 3 Stop\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003eLimited 25-Year Manufacturer Warranty\u003cbr\u003e\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739078189,"sku":"35360","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35360_X4-ND3-52MM_01_Hero.jpg?v=1745602174"},{"product_id":"breakthrough-nd-3-stop-49mm","title":"Breakthrough Photography 49mm X4 Solid Neutral Density 0.9 Filter - 3 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 3-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 ND\u003c\/strong\u003e delivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e49mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND3-49MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 49mm X4 Solid Neutral Density 0.9 Filter - 3 Stop\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003eLimited 25-Year Manufacturer Warranty\u003cbr\u003e\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739110957,"sku":"35346","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35346_X4-ND3-49MM_01_Hero.jpg?v=1745602247"},{"product_id":"breakthrough-nd-3-stop-46mm","title":"Breakthrough Photography 46mm X4 Solid Neutral Density 0.9 Filter - 3 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 3-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 ND\u003c\/strong\u003e delivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e46mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND3-46MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 46mm X4 Solid Neutral Density 0.9 Filter - 3 Stop\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003eLimited 25-Year Manufacturer Warranty\u003cbr\u003e\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739143725,"sku":"35339","price":139.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35339_X4-ND3-46MM_01_Hero.jpg?v=1745602327"},{"product_id":"breakthrough-dark-cpl-82mm","title":"Breakthrough Photography 82mm X4 Dark Circular Polarizer 6-Stop Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Dark Circular Polarizer 6-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. \u003cmeta charset=\"utf-8\"\u003eThe X4 Dark CPL combines the benefits of Neutral Density (ND) and Circular Polarizer (CPL) filters in one compact, high-quality filter \u003cmeta charset=\"utf-8\"\u003esuccessfully eliminating vignetting down to 16mm. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability. \u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. 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Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability. \u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCombines ND \u0026amp; CPL for enhanced outdoor photography\u003c\/li\u003e\n\u003cli\u003eEliminates vignetting down to 16mm on full-frame cameras\u003c\/li\u003e\n\u003cli\u003eMulti-coated coating reduces reflections and improves image contrast\u003c\/li\u003e\n\u003cli\u003eRounded design ensures full image capture with minimal light loss\u003c\/li\u003e\n\u003cli\u003eStreamlines workflow by replacing the need to stack multiple filters\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e72mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eDarkCPL-6-72mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 72mm X4 Dark Circular Polarizer 6-Stop Filter\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739340333,"sku":"35297","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35297_DarkCPL-6-72mm_01_Hero.jpg?v=1745968055"},{"product_id":"breakthrough-cpl-62mm","title":"Breakthrough Photography 62mm X4 Circular Polarizer Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Circular Polarizer Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.\u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCircular Polarizer Filter with MRC16 \u0026amp; nanotec Coating Layers\u003c\/li\u003e\n\u003cli\u003eUnique American-made CPL film for color-neutral performance\u003c\/li\u003e\n\u003cli\u003eRobust brass traction frame designed to withstand extreme conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSCHOTT Superwhite B270 optical glass for excellent light transmission\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e62mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eX4-CPL-62mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eBreakthrough Photography 62mm X4 Circular Polarizer Filter\u003c\/span\u003e\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739405869,"sku":"35598","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35598_X4-CPL-62mm_01_Hero.jpg?v=1746029596"},{"product_id":"breakthrough-cpl-58mm","title":"Breakthrough Photography 58mm X4 Circular Polarizer Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Circular Polarizer Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.\u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCircular Polarizer Filter with MRC16 \u0026amp; nanotec Coating Layers\u003c\/li\u003e\n\u003cli\u003eUnique American-made CPL film for color-neutral performance\u003c\/li\u003e\n\u003cli\u003eRobust brass traction frame designed to withstand extreme conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSCHOTT Superwhite B270 optical glass for excellent light transmission\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e58mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eX4-CPL-58mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eBreakthrough Photography 58mm X4 Circular Polarizer Filter\u003c\/span\u003e\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739438637,"sku":"35591","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35591_X4-CPL-58mm_01_Hero.jpg?v=1746029431"},{"product_id":"breakthrough-cpl-52mm","title":"Breakthrough Photography 52mm X4 Circular Polarizer Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Circular Polarizer Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.\u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCircular Polarizer Filter with MRC16 \u0026amp; nanotec Coating Layers\u003c\/li\u003e\n\u003cli\u003eUnique American-made CPL film for color-neutral performance\u003c\/li\u003e\n\u003cli\u003eRobust brass traction frame designed to withstand extreme conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSCHOTT Superwhite B270 optical glass for excellent light transmission\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e52mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eX4-CPL-52mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eBreakthrough Photography 52mm X4 Circular Polarizer Filter\u003c\/span\u003e\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739700781,"sku":"35584","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35584_X4-CPL-52mm_01_Hero.jpg?v=1746028879"},{"product_id":"breakthrough-cpl-49mm","title":"Breakthrough Photography 49mm X4 Circular Polarizer Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Circular Polarizer Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.\u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCircular Polarizer Filter with MRC16 \u0026amp; nanotec Coating Layers\u003c\/li\u003e\n\u003cli\u003eUnique American-made CPL film for color-neutral performance\u003c\/li\u003e\n\u003cli\u003eRobust brass traction frame designed to withstand extreme conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSCHOTT Superwhite B270 optical glass for excellent light transmission\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e49mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eX4-CPL-49mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eBreakthrough Photography 49mm X4 Circular Polarizer Filter\u003c\/span\u003e\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739733549,"sku":"35577","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35577_X4-CPL-49mm_01_Hero.jpg?v=1746028716"},{"product_id":"breakthrough-cpl-46m","title":"Breakthrough Photography 46mm X4 Circular Polarizer Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Circular Polarizer Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.\u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCircular Polarizer Filter with MRC16 \u0026amp; nanotec Coating Layers\u003c\/li\u003e\n\u003cli\u003eUnique American-made CPL film for color-neutral performance\u003c\/li\u003e\n\u003cli\u003eRobust brass traction frame designed to withstand extreme conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSCHOTT Superwhite B270 optical glass for excellent light transmission\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e46mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eX4-CPL-46mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eBreakthrough Photography 46mm X4 Circular Polarizer Filter\u003c\/span\u003e\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739766317,"sku":"35570","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35570_X4-CPL-46mm_01_Hero.jpg?v=1746028603"},{"product_id":"breakthrough-nd-10-stop-82mm","title":"Breakthrough Photography 82mm X4 Solid Neutral Density 3.0 Filter - 10 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 10-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e82mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND10-82MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 82mm X4 Solid Neutral Density 3.0 Filter - 10 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739831853,"sku":"35556","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35556_X4-ND10-82MM_01_Hero.jpg?v=1745613222"},{"product_id":"breakthrough-nd-10-stop-77mm","title":"Breakthrough Photography 77mm X4 Solid Neutral Density 3.0 Filter - 10 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 10-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e77mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND10-77MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 77mm X4 Solid Neutral Density 3.0 Filter - 10 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739897389,"sku":"35549","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35549_X4-ND10-77MM_01_Hero.jpg?v=1745613038"},{"product_id":"breakthrough-nd-10-stop-72mm","title":"Breakthrough Photography 72mm X4 Solid Neutral Density 3.0 Filter - 10 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 10-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e72mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND10-72MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 72mm X4 Solid Neutral Density 3.0 Filter - 10 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739930157,"sku":"35542","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35542_X4-ND10-72MM_01_Hero.jpg?v=1745612765"},{"product_id":"breakthrough-nd-10-stop-67mm","title":"Breakthrough Photography 67mm X4 Solid Neutral Density 3.0 Filter - 10 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 10-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. 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Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e67mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND10-67MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 67mm X4 Solid Neutral Density 3.0 Filter - 10 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176739995693,"sku":"35535","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35535_X4-ND10-67MM_01_Hero.jpg?v=1745612631"},{"product_id":"breakthrough-nd-10-stop-62mm","title":"Breakthrough Photography 62mm X4 Solid Neutral Density 3.0 Filter - 10 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 10-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e62mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND10-62MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 62mm X4 Solid Neutral Density 3.0 Filter - 10 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740028461,"sku":"35528","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35528_X4-ND10-62MM_01_Hero.jpg?v=1745612392"},{"product_id":"breakthrough-nd-10-stop-58mm","title":"Breakthrough Photography 58mm X4 Solid Neutral Density 3.0 Filter - 10 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 10-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e58mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND10-58MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 58mm X4 Solid Neutral Density 3.0 Filter - 10 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740093997,"sku":"35521","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35521_X4-ND10-58MM_01_Hero.jpg?v=1745612118"},{"product_id":"breakthrough-nd-10-stop-52mm","title":"Breakthrough Photography 52mm X4 Solid Neutral Density 3.0 Filter - 10 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 10-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e52mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND10-52MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 52mm X4 Solid Neutral Density 3.0 Filter - 10 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740126765,"sku":"35514","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35514_X4-ND10-52MM_01_Hero.jpg?v=1745611993"},{"product_id":"breakthrough-nd-10-stop-49mm","title":"Breakthrough Photography 49mm X4 Solid Neutral Density 3.0 Filter - 10 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 10-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e49mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eX4-ND10-49MM\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 49mm X4 Solid Neutral Density 3.0 Filter - 10 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740159533,"sku":"35507","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35507_X4-ND10-49MM_01_Hero.jpg?v=1745611846"},{"product_id":"breakthrough-nd-10-stop-46mm","title":"Breakthrough Photography 46mm X4 Solid Neutral Density 3.0 Filter - 10 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 10-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e46mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eX4-ND10-46MM\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 46mm X4 Solid Neutral Density 3.0 Filter - 10 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740192301,"sku":"35500","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35500_X4-ND10-46MM_01_Hero.jpg?v=1745611673"},{"product_id":"breakthrough-nd-6-stop-82mm","title":"Breakthrough Photography 82mm X4 Solid Neutral Density 1.8 Filter - 6 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 6-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e82mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003eX4-ND6-82MM\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 82mm X4 Solid Neutral Density 1.8 Filter - 6 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740225069,"sku":"35493","price":179.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35493_X4-ND6-82MM_01_Hero.jpg?v=1745607089"},{"product_id":"breakthrough-nd-6-stop-77mm","title":"Breakthrough Photography 77mm X4 Solid Neutral Density 1.8 Filter - 6 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 6-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e77mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003eX4-ND6-77MM\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 77mm X4 Solid Neutral Density 1.8 Filter - 6 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740290605,"sku":"35486","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35486_X4-ND6-77MM_01_Hero.jpg?v=1745606968"},{"product_id":"breakthrough-nd-6-stop-67mm","title":"Breakthrough Photography 67mm X4 Solid Neutral Density 1.8 Filter - 6 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 6-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. 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Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. 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Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e58mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003eX4-ND6-58MM\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 58mm X4 Solid Neutral Density 1.8 Filter - 6 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740552749,"sku":"35458","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35458_X4-ND6-58MM_01_Hero.jpg?v=1745605618"},{"product_id":"breakthrough-nd-6-stop-52mm","title":"Breakthrough Photography 52mm X4 Solid Neutral Density 1.8 Filter - 6 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 6-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWeather sealed \u0026amp; Nano-coated with 16 Layers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost color neutral ND filter on the market\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 Year Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e52mm\u003c\/p\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp\u003eX4-ND6-52MM\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003eBreakthrough Photography 52mm X4 Solid Neutral Density 1.8 Filter - 6 Stop\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740585517,"sku":"35451","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35451_X4-ND6-52MM_01_Hero.jpg?v=1745605472"},{"product_id":"breakthrough-nd-6-stop-49mm","title":"Breakthrough Photography 49mm X4 Solid Neutral Density 1.8 Filter - 6 Stop","description":"\u003ch4\u003eX4 Solid Neutral Density 6-Stop Filter\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX4 ND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers the most color neutral performance and precise optical density thanks to years of research and advanced manufacturing methods. Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. The Breakthrough X4 line of filters feature our state-of-the-art 16-layer Multi-Resistant Coating (MRC16) and our nanotec Nano Coatings which combine to improve optical performance and durability.\u003c\/p\u003e\n\u003cp\u003eEight layers of our proprietary MRC are evenly applied to both sides of the glass disk which reduces reflections and improves image quality and contrast by eliminating stray light. Additionally our MRC16 layers protect the filter surface since the coating is structurally harder than the glass itself.\u003c\/p\u003e\n\u003cp\u003eOur breakthrough nanotec Nano Coatings are also applied to each side of filter to further defend against the elements. The nanotec coatings repel dirt, water and other debris by beading up on the surface rather than absorbing - making the filter easy and fast to clean.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 ND filters are designed to hold up for years of regular use in the field. 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Featuring our spectrally flat coatings and a precision machined brass traction frame, the X4 ND is designed to be incredibly sharp and built to last a lifetime.\u003c\/p\u003e\n\u003ch6\u003eFull Spectrum Performance\u003c\/h6\u003e\n\u003cp\u003eThe color cast seen in most neutral density filters on the market can be seen on a spectral graph as deviations from a flat curve - usually a color cast that results in an increase in transmission throughout the visible spectrum. The X4 ND has the flattest transmission curve throughout the visible range and well into infrared, leading to a more color neutral performance.\u003c\/p\u003e\n\u003cp\u003eAnd thanks to years of research and development, the X4 ND is incredibly precise to the ideal optical densities. An optimal 10-Stop (3.0) ND filter has a light transmission of 0.1%. With an average light transmission of 0.108% across the both visible and infrared spectrums, the X4 ND hits the mark with great accuracy giving you a more dependable baseline to set up shots.\u003c\/p\u003e\n\u003ch6\u003eA Design With Traction\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in the field. That's why the X4 ND is precision machined from high-quality brass with our signature ultra-thin, double-threaded traction frame. The filter forms a weather-seal on the lens and is built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature. And our rugged design makes it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003ch6\u003eBreakthrough Coatings\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eLow light transmission and green flaring are common problems with uncoated glass. 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Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.\u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. 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Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCircular Polarizer Filter with MRC16 \u0026amp; nanotec Coating Layers\u003c\/li\u003e\n\u003cli\u003eUnique American-made CPL film for color-neutral performance\u003c\/li\u003e\n\u003cli\u003eRobust brass traction frame designed to withstand extreme conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSCHOTT Superwhite B270 optical glass for excellent light transmission\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e105mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eX4-CPL-105mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eBreakthrough Photography 105mm X4 Circular Polarizer Filter\u003c\/span\u003e\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740716589,"sku":"35640","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35640_X4-CPL-105mm_01_Hero.jpg?v=1746028235"},{"product_id":"breakthrough-cpl-95mm","title":"Breakthrough Photography 95mm X4 Circular Polarizer Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Circular Polarizer Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.\u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCircular Polarizer Filter with MRC16 \u0026amp; nanotec Coating Layers\u003c\/li\u003e\n\u003cli\u003eUnique American-made CPL film for color-neutral performance\u003c\/li\u003e\n\u003cli\u003eRobust brass traction frame designed to withstand extreme conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSCHOTT Superwhite B270 optical glass for excellent light transmission\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e95mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eX4-CPL-95mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eBreakthrough Photography 95mm X4 Circular Polarizer Filter\u003c\/span\u003e\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740749357,"sku":"35633","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35633_X4-CPL-95mm_01_Hero.jpg?v=1746030317"},{"product_id":"breakthrough-cpl-82mm","title":"Breakthrough Photography 82mm X4 Circular Polarizer Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Circular Polarizer Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.\u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCircular Polarizer Filter with MRC16 \u0026amp; nanotec Coating Layers\u003c\/li\u003e\n\u003cli\u003eUnique American-made CPL film for color-neutral performance\u003c\/li\u003e\n\u003cli\u003eRobust brass traction frame designed to withstand extreme conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSCHOTT Superwhite B270 optical glass for excellent light transmission\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e82mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eX4-CPL-82mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eBreakthrough Photography 82mm X4 Circular Polarizer Filter\u003c\/span\u003e\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740782125,"sku":"35626","price":159.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35626_X4-CPL-82mm_01_Hero.jpg?v=1746030154"},{"product_id":"breakthrough-cpl-77mm","title":"Breakthrough Photography 77mm X4 Circular Polarizer Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Circular Polarizer Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.\u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCircular Polarizer Filter with MRC16 \u0026amp; nanotec Coating Layers\u003c\/li\u003e\n\u003cli\u003eUnique American-made CPL film for color-neutral performance\u003c\/li\u003e\n\u003cli\u003eRobust brass traction frame designed to withstand extreme conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSCHOTT Superwhite B270 optical glass for excellent light transmission\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e77mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eX4-CPL-77mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eBreakthrough Photography 77mm X4 Circular Polarizer Filter\u003c\/span\u003e\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740847661,"sku":"35619","price":149.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35619_X4-CPL-77mm_01_Hero.jpg?v=1746030048"},{"product_id":"breakthrough-cpl-72mm","title":"Breakthrough Photography 72mm X4 Circular Polarizer Filter","description":"\u003ch4\u003eBreakthrough Photography X4 Circular Polarizer Filter\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eX4 CPL\u003c\/strong\u003e is engineered to be the sharpest and most color neutral polarizer on the market. Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.\u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. This translates into a more color neutral performance without a color cast.\u003c\/p\u003e\n\u003cp\u003eIncreased average transmission also leads to better performance. Higher light transmission allows more light to pass through to the sensor, which translates into faster shutter speeds, sharper images and the ability to use a lower ISO when shooting video. The X4 CPL features the highest average light transmission - 47.18% - of any available CPL without sacrificing polarization efficiency.\u003c\/p\u003e\n\u003ch6\u003eA winning design proven by outdoor photographers.\u003c\/h6\u003e\n\u003cp\u003eWe engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. 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Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.\u003c\/p\u003e\n\u003ch6\u003eWorld’s most color neutral CPL. Guaranteed.\u003c\/h6\u003e\n\u003cp\u003eThe X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and nanotec Nano Coatings. \u003c\/p\u003e\n\u003cp\u003eAt the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics. \u003c\/p\u003e\n\u003cp\u003eThe result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.\u003c\/p\u003e\n\u003ch6\u003eHigh transmission and true color neutrality.\u003c\/h6\u003e\n\u003cp\u003eSpectrometers are optical instruments used to measure the properties of light across a spectrum. Wavelength and intensity are detected to determine the percentage of light that a filter transmits or blocks. The data are displayed as line graphs with light transmission % values for each wavelength measured.\u003c\/p\u003e\n\u003cp\u003eA perfectly flat light transmission curve would yield a perfectly color neutral result. While this is technically impossible, the X4 CPL has the flattest transmission curve of any polarizer on the market - guaranteed. 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Our rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.\u003c\/p\u003e\n\u003cp\u003eWe stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.\u003c\/p\u003e\n\u003ch6\u003eWeather-Sealed\u003c\/h6\u003e\n\u003cp\u003eOur X4 CPL filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.\u003c\/p\u003e\n\u003ch6\u003eNano-Coating\u003c\/h6\u003e\n\u003cp\u003eEach filter incorporates our state-of-the-art nanotec Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.\u003c\/p\u003e\n\u003ch6\u003e25 Year Support\u003c\/h6\u003e\n\u003cp\u003eWe stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCircular Polarizer Filter with MRC16 \u0026amp; nanotec Coating Layers\u003c\/li\u003e\n\u003cli\u003eUnique American-made CPL film for color-neutral performance\u003c\/li\u003e\n\u003cli\u003eRobust brass traction frame designed to withstand extreme conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSCHOTT Superwhite B270 optical glass for excellent light transmission\u003c\/li\u003e\n\u003cli\u003eWeather sealed with \u003cmeta charset=\"utf-8\"\u003enanotec Nano Coating technology\u003c\/li\u003e\n\u003cli\u003e25-Year Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSize:\u003c\/h4\u003e\n\u003cp\u003e67mm\u003c\/p\u003e\n\u003ch4\u003eFAQ:\u003c\/h4\u003e\n\u003cp\u003eThe X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLook through the viewfinder and polarize the scene to the desired amount.\u003c\/li\u003e\n\u003cli\u003eNote the position of the filter by observing which symbol is on the frame.\u003c\/li\u003e\n\u003cli\u003eRotate filter back to the same symbol as you switch from horizontal to vertical compositions\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProduct SKU:\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eX4-CPL-67mm\u003c\/p\u003e\n\u003ch4\u003eIn The Box:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eBreakthrough Photography 67mm X4 Circular Polarizer Filter\u003c\/span\u003e\u003cbr\u003eLimited 25-Year Manufacturer Warranty\u003c\/p\u003e","brand":"Breakthrough Photography","offers":[{"title":"Default Title","offer_id":35176740913197,"sku":"35605","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/6167\/4285\/files\/35605_X4-CPL-67mm_01_Hero.jpg?v=1746029812"},{"product_id":"breakthrough-night-sky-77mm","title":"Breakthrough Photography 77mm Night Sky Filter","description":"Breakthrough Night Sky 77mm\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eLight Pollution.\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eEliminated.\u003c\/strong\u003e\u003cbr\u003eEach Night Sky filter delivers incredible starlight definition and true color neutrality. 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