Urth 82mm CPL Polarizing Japanese AGC Optical Glass 8-Layer Nano Coating Double-Threaded Lens FilterThe Urth 82mm Circular Polarizing Filter cuts reflected polarized light to increase contrast and boost color saturation and vibrancy. The CPL Filter cuts reflections, boosts color saturation, and increases contrast by cutting out polarized light. Cuts Out 99. 9 Percent of Reflected Light Polarized light can wash out images with silvery reflected light, which is why the Urth CPL Polarizing Filter cuts out 99. 9 percent of reflected light from water,