Product Description
The neutral gray half of this filter transmits 50% of the incoming light, so
that it darkens the respective portion of the subject by one f-stop without
altering its colors. For example, when the sky is too bright in relation to the
landscape, this is an ideal amount for good detail rendition in the clouds and
for preventing the sky from being washed out by over-exposure.
Note: The (501) and (502) series of filters are supplied in a rotating mount,
similar to that of a polarizer.
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