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Hi gang
I want to do some prime focus film shots tonight in
the Saggittarius region using my Pentax 6x7 and some E200 film.
I am really excited about doing this.
I want to mount the camera on my AP180EDT with both
the 0.75x telecompressor and the AP field flattener. That gives a focal ratio of
f/6.75
My question is what exposure time should I use for
something like M20?
If I got no answers from the list, I'd probably go
with 45 minutes, but you folks are the experts, so I'd like to hear some
other opinions.
Thanks and best regards
Richard
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