Product description :Variable Neutral Density: ND2-ND1000; Evenly reduce light transmittance over visible spectrum, minimal color casting; Premium Polarizing materials from Nitto Denko, of 99.8% polarizing coefficient;
Multi-coated(MC): 16+ layers of high temp vacuum coatings, plus the extra AR(anti-reflection) coatings on optical glass ensure the superb optical quality;
Slim & Durable: Total depth is 7.9mm; only 5.65mm after putting on lenses, ideal for wide angle lenses - minimal vignetting; Aviation aluminum-alloy frame provides a light weight but durable support to the glass lens inside;
Compatibility: Compatible for Canon, Nikon, Sony, Fuji, Olympus, Zeiss, Schneider, Robinin, Sigma, Tamron and Toking lenses