Peak Design K&F Concept 67mm Circular Polarizer Filter CPL Layer | Ubuy 72mm Polarising Filter 【All-New Brass Frame Design】Classic brass frame with CNC non-slip design, sturdy and durable, smoothly install on lenses. 72mm MC UV Lens Protection Filter Super Slim with 36 Multi-Layer Coatings, High Definition UV Camera Lens Filter (Nano-X PRO Series 【Top HD Optical Glass】Made of AGC optical glass, which effectively reduces reflections and glare from the filter itself, ensuring high quality images and no blurring. K&F CPL Filters use high grade SCHOTT optical glass, top level of transmittance, effectively reduce or eliminate the reflection of non-metallic surfaces, improving the image quality of the subject and improving the clarity of the image This effect is often used to increase the contrast and saturation in blue skies and white clouds. K&f Concept Nano-coating Cpl vnd 2in1 Lens Filter,67mm/72mm/77mm/82mm 【36-Layer Coated】Nano-level coating on both sides of the glass, waterproof and scratch-resistant, ensures the filter has 45% light transmission and removes 99., 2% of polarized light.