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This UV Filter blocks the invisible UV component of light from the sky, which
can cause blur and to which many color films react with a blue cast.
These
filters should be called UV-Blocking Filters, because there are filters for
technical applications that pass UV radiation
and block all the other wavelengths. Nevertheless,
the short term “UV Filter” has become established
among photographers.
UV Filters are ideal for photography in high altitudes
(in the mountains), by the sea and in regions with very clean air. The pictures
gain brilliance and disturbing blue casts are avoided.
Because the glass is
colorless, color rendition
is not altered, aside from the elimination of the unwanted blue cast, and no
increase in exposure is required.
That makes a UV Filter very suitable as protection
of the front element of the taking lens against dust, flying sand, sea water
spray and the like, and it can be kept on the lens at all times. It is recommended
for analog color and black-and-white as well as digital photography.
This filter uses our standard B+W F-Pro filter mount, which has a front
accessory thread and is made of brass. Compared to the earlier standard
mount introduced in 2001, the F-Pro mount has become thinner.
Now it can
be used with wide angle lenses, including most 24mm focal lengths on a
full frame body, without vignetting. Another advantage of the F-Pro
mount is it's modified retaining ring, which is no longer threaded in
from the front, but holds the filter glass in place from the back. When
removing a filter or lens hood that has been screwed on too tight to the
filter, the retaining ring is not at risk of loosening.
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