This B+W
Neutral Density Filter reduces
the light intensity by three f-stops (log density 0.9). It still features very
good color neutrality.
This ND filter is especially appropriate for use on
video cameras when the lens cannot be stopped down sufficiently in great brightness
or when a deliberately low depth of field is desired. The filter factor is
8x.
Single Coating
Each glass surface is vacuum coated with one layer of Anti-Reflection
coating. This single layer helps to prevent internal ghosting and
reflections. It also improves light transmission from approximately 92%
(uncoated glass) to over 98%.
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.
NOTE: diopters are mounted in the older mount due to glass thickness.
