Hoya 77mm Circular Polarizer Glass Filter: The
Light rays which are reflected by any surface become polarized and Hoya 77mm
Filter are used to select which light rays enter your camera lens. Hoya 77mm
Circular Polarizer Filter allow you to remove unwanted reflections from
non-metallic surfaces such as water glass. Hoya 77mm Glass Filter also saturate
colours and increase contrast. Hoya 77mm Filter come in two variations but have
the same effect. Linear polarizer work with older camera meters, Circulars
polarizer are designed for today's newer split-beam metering systems used in
auto focus cameras. Check your camera's manual.
