Canon 52mm Drop-in Pol Filter

The 52mm Drop-in Circular Polarizer from Canon is designed to enhance your picture quality by blocking reflected light from glass and water surfaces for improved colour saturation. Simple to use, it polarizes light circularly, rather than linearly, so it will not interfere with autofocus or TTL light metering.  It is designed for use with lenses using rear-mounted drop-in filters, and can be rotated from the outside without removing the holder from the lens. It will fit select lenses with a 52mm diameter, please see the Specifications tab for compatible lenses.