• A polarizer is an optical filter that passes light of a specific polarization and blocks waves of other polarizations.
• It can convert a beam of light of #ff0000 or mixed polarization into a beam with well-defined polarization.
• Polarizers are used in many optical techniques and instruments, and polarizing filters find applications in photography and liquid crystal display technology.
• Polarizers can also be made for other types of electromagnetic waves besides light, such as radio waves, microwaves, and X-rays.
• Circular Polarizer filters are used to reduce reflections from non-metallic surfaces (windows, water and so on) and increase density within the sky and/or foliage by absorbing reflected light. They also allow to emphasize details such as clouds and makes pictures crisper, with deeper color tones. Their effect cannot be achieved with a computer software.

Slim Frame

These excellent quality slim filters will help to reduce the chance of vignette on wide angle lenses, and is providing both-side thread, so you can attach other accessories on it such as your lens cap.

Specification:

Brand : Zomei

Available Caliber : 77mm

Model : 77mm CPL filter

Filter Material : Import optical glass

Thread Material : Aviation aluminu

77mm CPL filter for all 77mm lens for DSLR / SLR / DC / DV camcorder (Including lens for Canon Nikon Sony Pentax Fujifilm OLYMPUS ..)

1 x77mm Circular Polarizer Filter,1 x individual Storage Case