Increase the color contrast and saturation such as in blue skies and white clouds Removes unwanted reflections from non-metallic surfaces such as water and glass 82mm CPL Circular Polarizer Filter Lens Protector For DSLR Camera Increase the color contrast and saturation such as in blue skies and white clouds Removes unwanted reflections from non-metallic surfaces such as water and glass Unlike linear polarizer, circular polarizer filter (CPL) works with auto-focus camera Protects the front of the lens 82mm filter diameter Brand No Brand SKU WA285EL0FI6ZGNAFAMZ-208050 Model 35001122