Minimises the influences of atmospheric haze High Definition (HD 270) Schott optical glass with >99% transmittance Precision manufactured high-quality anti-corrosive aviation aluminium frame Clear Engraving to prevent fading of inscriptions Multicoated (16 layers) to prevent scratches Oil and water repellent The precision thread ensures a smooth screw-on Ultra-thin, only 5mm eliminates any risk of vignetting Absorbs ultraviolet rays guaranteeing sharper images Protects lens against scratches, dust, bumps and drops What's in the box 95mm UV Filter Protective Case