EXCLUSIVE 8-layer multi-coating for best in class light transmission Water & Oil repellent, scratch & stain resistant, easy to clean Thin frame 5-year Limited WarrantyColor and contrast enhancementLight rays which are reflected by any surface can become polarized so polarizing filters are used to select which light rays enter your camera lens.CIRCULAR POLARIZING filters allow you to remove unwanted reflections from non-metallic surfaces such as water, glass etc. They also enable colors to become more saturated and appear clearer with better contrast. This effect is often used to increase the contrast and saturation in blue skies and white clouds. HOYA's polarizing filters do not affect the overall color balance of a shot. Specifications:Type Circular PolarizerSize 77 mm Thickness 0.04" (1.0 mm) Filter Factor 1 to 1.5 stops?
