X4 CPL 82mm Circular Polarizer Filter - Schott B270 MRC16 Nano Coating Weather Sealed 25 Year Support by Breakthrough Photography

WORLDWIDE COLOUR NEUTRAL POLARIZER GUARANTEED A perfectly flat transmission curve would give a perfectly color-neutral result, and while there is no perfectly neutral CPL filter (unlike what other filter manufacturers can claim), the X4 CPL is the most color-neutral of all CPL filters. ADVANCED POLARIZER IN THE WORLD - All commercially available CPL filters have a yellow tint due to a gradual increase in light transmission from about 600nm which shows a sudden increase from 650nm into the IR range. With our X4 CPL film, we have achieved a gradual decrease in transmittance from 600nm, and instead of seeing an uncontrolled rise close to 650nm and far into the infrared range, the X4 CPL film has a very controlled permeability in the IR range without any rash in the curve. Result: warm and vibrant images without the apparent colour cast. X4 CPL (Circle Polarizer) Filter:The X4 CPL features SCHOTT Superwhite B270(R) optical glass which is an ultra-clear crown glass. It is produced by melting high-purity raw materials and then produced in a continuous drawing process. The result is excellent transmission in the ultraviolet, visible and infrared spectrum and a high surface quality that accepts our state-of-the-art MRC and Nanotec(R) coatings exceptionally well. Suitable for: This CPL filter is compatible with all 82mm camera lenses. Your lens thread size is printed under your lens cap or written somewhere on the lens barrel. Make sure you order the correct size, otherwise it will not fit your lens. - We stand behind every CPL filter we make. Each X4 CPL filter has a unique serial number engraved on the inner frame. -