From: Eric Nelson (emanmb@yahoo.com)
Date: 01/21/03-12:02:05 PM Z
Best way to find out is to do a test sheet using .5
secong intervals, see what you get and proceed from
there.
I do that everytime I start this process.
eric nelson
--- "Christina Z. Anderson" <zphoto@montana.net>
wrote:
> Hi List!
> Can anyone give me a ballpark time of exposures
> to test strip at, for a
> normal density 35mm negative onto FP4 (125) 4x5 film
> mostly full frame under
> a condenser enlarger with an 80mm lens, lens set at
> around 5.6? I've got
> some past mathematical formula where you multiply
> the f stop and
> magnification etc etc but would much prefer
> someone's experience of what
> they start test exposing their film at. Is it
> seconds, or tenths of
> seconds, for instance? Since this is an
> interpositive that will then be
> reexposed onto 8x10 Bergger ortho film, I want it to
> be a bit overexposed
> and underdeveloped...I always used to use Kodak
> SO132 film, and now that is
> discontinued and I am not aware of any other direct
> dupe film--if someone
> knows of one, let me know, too.
> Chris
>
>
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