X1 CPL (Circular Polarizer) FILTER: The X1 CPL filter features critically sharp AGC glass made in Japan. Resolving critically sharp and delivering excellent color neutrality, the X1 CPL features an ultra-slim frame profile, MRC8 and durable weather-sealed construction.
MRC8 CREDIT FILTER: Uniformly applied MRC8 to eliminate unwanted glare and ghosting which easily get’s compounded at long exposures. Our MRC8 is structurally harder than the glass itself, providing a protective scratch-resistant layer, shielding the glass from the elements of frequent fieldwork.
ELIMINATES VIGNETTING: The X1 CPL features a 3.5mm ultra-slim double-threaded frame profile to eliminate vignetting on wide-angle full-frame setups. In our lab tests, 4.2mm was the frame width at which point 1-stop of light falloff (vignetting) became visible on images with 16mm wide-angle setups on full-frame cameras.
FITMENT: This CPL filter is compatible with all 77mm camera lenses. Your lens thread size will be printed underneath your lens cap or written somewhere on the lens barrel. Make sure you order the correct size otherwise it will not fit your lens.
25 YEARS SUPPORT: We stand behind every CPL filter we make with our 25 Year Ironclad Guarantee. Every X1 CPL filter has a unique serial number laser engraved on the interior frame. When you activate your 25 Year Ironclad Guarantee, we assign this serial number to you, so any future discussions on this unique filter are tracked, issues recorded and all that stuff which goes into future product design.