>At 02:47 12/8/99 , you wrote:
>Answer: Yes. Any additional glass and additional air-glass
interfaces
>between subject and film plane takes something out of the light
>transmission (reducing contrast). It also increases risk of flare
>particularly with backlit subjects, shooting into the sun or shooting
into
>a bright light source (or the reflection of one).
>
I read a new-to-me approach to filters: get a gel or polyester filter
and cut it and tape it over the rear shutter opening. This is
particularly good for deep red IR filters: http://www.a1.nl/phomepag/
markerink/btfr_fil.htm
The downside obviously is that you have to use the same filter for the
whole roll, and I don't know the flare and image degradation qualities
of gel and polyester filters and compared to glass.
Be seeing you.
Dirk Wright
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