Zomei&reg; Ultra Slim Multi-Coated AGC Optical Glass MC-UV Ultra Violet Lens Filter - 67mm Only 3mm thickness, Wide-angle lens compatible ultra thin frame. 8-layer Multi-coated, greatly reduce the light reflection from the glass surface to 0.5% (8% in non-coated glass!), thereby eliminates disruptive stray light and creates better images. Glass mounted with high pressure press technology. Original AGC Optical Glass from Japan. All Materials Used in this filter Meet the Requirements of European Union's standards of Environ Ment Protection-ROHS(Restrictions on Hazardous Substances).