Datasheet
11
Radiant white clouds against a deep blue sky or saturated fall colors are no
coincidence. Polarizing lters block the bluish gray veil from the diffusely
polarized light of the sky. They augment the purity of true colors and increase
color saturation. Polarizing lters are amongst the most important lters in
(digital) photography. They can be rotated in the mount, allowing the visible
regulation of the elimination effect in the viewnder or on the display. The
lter factor is two to three f-stops. The maximum effect is achieved at a
shooting angle of 0° to the sun. For an even effect in the picture, mm (or
28 mm in mm lm format) should be the minimum. The second benecial
effect of pol lters is the reduction of reections on non-metallic surfaces
(water, shop windows, lacquer). Objects behind these surfaces, including
writing behind reecting lacquer, are made visible. A fascinating way to
enhance images without using photo editing. Circular pol lters are recom-
mended for digital cameras.
Unwanted reections on glass (right) are removed by the
pol lter
With pol lter: Pure, authentic colors, more brilliance
Without pol lter: Typical gray-blue haze on sunny days