The Circular Polarizer Slim Filter allows you to remove unwanted reflections from non-metallic surfaces such as water and glass, and also improves color saturation, clarity and contrast. The Neutral Density Filter reduces the amount of visible light that enters the lens, allowing the user to utilize wider apertures or slower shutter speeds, particularly in bright conditions.

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, dramatically blue skies. It also removes glare from non-metallic surfaces, such as windows and water. Color saturation in general, especially outdoors, can be improved significantly. Think of it as sunglasses for your camera.

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 DSLR'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.

A polarizing filter allows you to remove unwanted reflections from non-metallic surfaces such as water and glass, and it also improves color saturation, clarity and contrast. 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. You can also use a polarizer filter to darken blue skies. Polarizers come in two versions, linear and circular, and auto-focus cameras will perform best with a circular polarizer.