Sigma EX DG 105mm Single-Coated Circular Polarizer Filter Product FeaturesSize: 105mm | Style: Polarized Used to select which light rays enter your camera lens, and which light rays are reflected Removes unwanted reflections from non-metallic surfaces such as water or glass, and saturates colors providing better contrast Eliminates ultraviolet rays to remove haze from outdoor shots without affecting the overall color balance Single-coated circular polarizer, with an 86-millimeter thread size, and a filter factor between 2.3 and 2.8 or 1.3 f-stops Constructed of high-quality optical glass Product DescriptionSize: 105mm | Style: Pol...