Hoya 52mm PRO1 Digital Circular Polarizer Multi-Coated Glass Filter

A polarizer is different than most filters in that it is composed of two pieces of glass, mounted independently inside a round frame so that one can be rotated relative to the other. As it is rotated, it increasingly cuts out glare and haze. With an SLR, you can actually observe this change through the viewfinder. Polarizers reduce glare from water, glass, or any non-metallic surface. You can also use a polarizer filter to darken blue skies. Polarizers come in two versions, linear and circular, and autofocus cameras will perform best with a circular polarizer..

Key Features:

• Digital Multi-Coated - These filters greatly reduce lens flare and ghosting caused by reflections

• Black Almite Frame - A black matte aluminum satin finish almite frame for reducing reflections

• Black Rimmed Glass - Black rimmed glass reduces light reflection around the filter edge

• Low Profile Frame - Ultra thin filter frames to help avoid vignetting on super wide angle lenses

• Knurling Edge Frame - Equipped with a knurling edge for easy attachment and removal

• UV Protected Case - Filter cases are UV protected to further lengthen the life of filters