Breakthrough Photography 112mm X4 Circular Polarizer Filter

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Breakthrough Photography X4 Circular Polarizer Filter The X4 CPL 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. World’s most color neutral CPL. Guaranteed. The 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. At 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. The result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer. High transmission and true color neutrality. Spectrometers 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. A 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. Increased 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. A winning design proven by outdoor photographers. We 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. We 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. Weather-Sealed Our 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. Nano-Coating Each 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. 25 Year Support We stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support. Features: Circular Polarizer Filter with MRC16 & nanotec Coating Layers Unique American-made CPL film for color-neutral performance Robust brass traction frame designed to withstand extreme conditions SCHOTT Superwhite B270 optical glass for excellent light transmission Weather sealed with nanotec Nano Coating technology 25-Year Manufacturer Warranty Size: 112mm FAQ: The X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame. How It Works: Look through the viewfinder and polarize the scene to the desired amount. Note the position of the filter by observing which symbol is on the frame. Rotate filter back to the same symbol as you switch from horizontal to vertical compositions Product SKU: X4-CPL-112mm In The Box: Breakthrough Photography 112mm X4 Circular Polarizer FilterLimited 25-Year Manufacturer Warranty Show more