The Cavision 4 x 4" Linear Polarizer Filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. This results in a noticeable increase in the saturation of skies and foliage, as well as clearer imagery when photographing in hazy conditions. A linear polarizer differs from a circular polarizer in that it does not supports use of a camera's autofocus or auto exposure functions; it is best suited for use with manual cameras, such as view cameras, that are not dependent on internal mechanisms to determine focus or metering settings.
This filter measures 4 x 4" / 101.6 x 101.6mm and is constructed from 4mm-thick optical glass.
|Size||4 x 4" / 101.6 x 101.6 mm (4 mm thick)|
|Filter Factor||About 2.5 (1.3 stops)|
|Effect||Reduce/eliminate reflections and haze and improve color and tonal saturation|