Opteka 72mm High Definition II Multi-Coated Circular Polarizing Glass Filter For The following Lenses - Canon EF 35mm f/1.4L, EF 85mm f/1.2L II, EF 135mm f/2L Lenses & The Nikon 85mm f/1.4, 18 200mm f/3.5 5.6G Lenses For shooting in bright sun, at beaches, snow, etc. Controls bright light entering lenses for a better balanced color image. Darkens blue skies and reduces reflections from non-metallic surfaces Increases saturation in the blue range of the spectrum, i.e. skies, water Mount rotates to control amount of effect Multi-Coated and heat treated glass to eliminate distortion and minimize light reflections Brand New, Lifetime Warranty