This 82mm Pro Circular Polarizing Filter from Genustech can remove unwanted reflections from non-metallic surfaces such as water or glass, and also saturate colors providing better contrast. The effect can be seen through the viewfinder and changed by rotating the filter. The filter factor varies according to how the filter is rotated and its orientation to the light source.
This filter is made of Japanese optical glass for optimal image sharpness. It features 16 layers of multicoating to resist lens flare and optimize light transmission. The super-hard coating is also water-repellent scratch-resistant, making it suitable for use in harsh environments, yet easy to clean. The slim filter ring allows the filter to be used with wide-angle lenses without vignetting.