Tiffen 72CP 72mm Circular Polarizer

72mm circular polarizer filter from Tiffen. Polarizers provide color and contrast enhancement. Reflected light often shows up as whitish glare that washes out color in an image. A polarizer corrects this problem producing deep, dramatic blue skies. It also removes glare from windows and water. Color saturation can be greatly improved.

A Circular Polarizer has the same effect as a Polarizer and is used on cameras with beam splitting metering systems commonly found on auto focus SLR's (for most 35mm auto-focus cameras see your camera manual).

Area of sky most effectively polarized with a Circular Polarizer:

Point your index finger at the sun. With your thumb extended at a right angle (90°), rotate it around the axis of the index finger. It will point out the band of deepest blue from horizon to horizon.