【Lens Protective】Protecte lens will not be scratched by dust, causing damage to the lens mouth and increasing product life. 【Transparent Filter】Optical glass material, multilayer transparent coating, improve light transmittance and effectively reduce reflection on smoothly . 【Metal Frame】Frame of the filter is made of metal materials, plus various patterns and oxidation processes, and special gold treatment. 【UV Filter】UV filter is suitable for shooting in seaside mountains, snow sources and open areas, etc, can reduce the blue tint caused by ultraviolet rays. 【Photography Accessory】For camera, it can eliminate the interference of ultraviolet rays for CCD, which is helpful to increase the definition and color reproduction.