The Cpl filter effectively eliminates the reflection of the non-metallic surface, thereby improving the image quality of the subject, and improving the clarity of the picture can effectively increase the saturation of the color. The lens adopts a double-sided polishing process and is used on a telephoto lens. The photos are still clear, high-fidelity, restore the true colors of thingsQuick installation and removal, magnetic filter can be installed in one secondUltra-thin frame design, which can effectively prevent vignetting when using a wide-angle lens. The frame is processed by Cnc, and the appearance is full of layers.After the glass is optically polished, a high-tech film is plated on the surface. ""Moldproof"", ""Waterproof"", ""Anti-scratch"" and ""Anti-greasy"".