Fotasy Pro 37mm MRC Multi-Resistant Nano Coating Super Slim MC CPL Circular PL HD Filter This MRC PRO CPL Circular PL filter increases color saturation, darken blue skies so white clouds stand out. and eliminate reflections from non-metallic surfaces like glass or water. It will also reduce the softness in scenery caused by atmospheric haze MRC Multi-Resistant Nano Coating, Waterproof, Oil Proof, Scratches Resistant 17 layer Double Side Coating Black Almite Frame Filters feature a black matte. Black Rimmed Glass. These filters are equipped with black rimmed glass to reduce the chance of light reflecting off the edge. Size: 37mm