52mm Super Multi-Coated Pro-1 Circular Polarizer Filter Rodenstock 52mm Circular Polarizer HR Digital super MC Slim Filter - Helps to Eliminate Reflections and Glare -Reduces Haze and Blue Cast in Landscapes - Greater Color and Tonal Saturation - Slimline Mount Reduces Vignetting -Robust Brass Filter Ring Hydrophobic and Oleophobic Filter Coat 16-Layer Multicoated Glass Circular polarizer - 52 mm Eliminates reflections and haze and improves color and tonal saturation - Hardened optical glass