Zomei 52mm Ultra Slim UV Filter AGC Optical Glass UV Ultra Violet Lens Filter Slim picture frame design,Only 2.82mm thickness, Wide-angle lens compatible ultra thin frame. Super waterproof,prevent oil pollution,offer a physical protection from dust or scratches to the lens. The noble and elegant packaging Advanced laser engraving technology,Transmittance up to 99.7%. Made with no compromise. Top-transmittance,Very low reflectivity,Import optical glass and ROSH authoritative authentication. All Materials Used in this filter Meet the Requirements of European Union's standards of Environ Ment Protection-ROHS(Restrictions on Hazardous Substances).