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B+W 67mm Circular Polarizer SC Filter

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  • Helps to Eliminate Reflections and Glare

  • Reduces Haze and Blue Cast in Landscapes

  • Greater Color and Tonal Saturation

  • Single Anti-Reflection Coating

  • Rugged Brass Filter Ring

SKU: 8238

Availability: Ships within 24 Hours

$119.40

Description

Details

Highly efficient standard circular polarizing filter for all cameras with beam splitters in the light paths of their TTL exposure meter and with autofocus lenses. Circular polarization has the same pictorial effect as linear polarization, but allows for proper exposure metering and/or autofocus distance settings.

B+W Polarizers increase color saturation and reduce reflections. The neutral gray color and plane parallel polarizer material guarantee optimal image results. High-quality optical glass ensures excellent pictorial quality. The filter factor varies according to how the filter is positioned in relation to the sun. Filter factor is between 2.3 and 2.8.

Linear and circular polarizers both consist of a linear polarizer foil but differ in their construction in the following way. Modern SLR cameras have have a beam-splitting prism that sends part of the incoming light to the meter and part to the viewfinder. The effect is that the light entering the meter is partially polarized by the beam-splitter. A linear polarized placed on the lens of such a system will act as a second polarizer and block light to the meter by a degree dependent on the angle between the prism and the polarizer on the lens. The result is incorrect exposure/aperture values from the meter. The circular polarizer circumvents this problem through the addition of a 1/4-wave retarder, or delay, foil. This ensures that the linearly polarized light is changed into a rotation that appears unpolarized to the meter, resulting in proper exposure/aperture readings.

Additional Info

Additional Info

SKU 8238
Warehouse Location No
UPC/EAN 4012240007622
Manufacturer Part Number 65-1065308
Condition New
Manufacturer B+W
Filter Effect Polarizing
Filter Shape Circular
Circular Size 67mm
Square/Rectangular Size No
Mail-In Promotion No
What's in the Box Filter

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B+W 67mm Circular Polarizer SC Filter 0 out of 1 5 based on ratings. user reviews.