Hoya High Definition 77mm CPL FilterThe Hoya 77mm HD Digital High Transparency Circular Polarising Filter feaures four times the breaking strength of a regular filter, using the same polarising film as that used in the latest high definition LCD TV screens. It has 25% higher light transmission than standard polarising film used in current photographic filters. The Hoya 77mm HD Digital High Transparency Circular Polarising filters allow you to remove unwanted reflections from non-metallic surfaces such as water and glass etc. They also enable colours to become more saturated and appear clearer with stronger contrast. High Transparency & High Durability UV Absorbing Film 25% Greater Light Transmission than Standard Polarizing Film 8-layer Anti-Reflective Multi-Coating Water & Oil Repellent, Scratch & Stain Resistant Wide-Angle Lens Compatible Ultra Thin Frame Glass Mounted with High Pressure Press Technology