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Digital BW, The Print

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Re: [Digital BW] Optimizing B&W film development for both digital and traditional darkroom

2005-06-20 by Brian Ellis

>As a general rule, when developing >B&W negs for both scanning and
>traditional darkroom which paper grade >(i.e. II or III) would it be
>preferable to standardize my film >development?  In other words,
>should
>I develop my negs for a lower or higher >contrast?

It depends in part on how serious you are about tailoring your negatives to 
suit a particular scene and on how much, if any, testing you're willing to 
do.

Ideally you base your development time on the contrast in the scene and on 
how you want the print to look, i.e. shorter time = lower contrast which you 
might want for a scene in which the subject brightness range exceeds the 
ability of the film to hold detail in the dark and bright areas, longer time 
= higher contrast, which you might want for a "flat" scene that you think 
would look better when printed with more contrast than the scene possesses.

The times needed to accomplish this are determined by testing and you can 
learn how by reading a couple chapters in any of several books. The easiest 
one to follow IMHO is Fred Picker's book "Zone VI Workshop" or if that isn't 
available Ansel Adams' book "The Negative" is also good.

The above methodology is feasible if you're using sheet film since only then 
can you develop each negative separately. It isn't feasible if you're using 
roll film since obviously each negative on a roll must be developed the same 
way. If you're using roll film (or if you're using sheet film but don't want 
to do any reading or testing) then for starters set your film speed at half 
the rated speed and develop for 20% less than the manufacturer's recommended 
time.  By cutting the film speed in half you should insure that you'll have 
detail in the shadow areas and by cutting the time by about 20% you should 
reduce the likelihood of blown out highlights.

See how that works with some typical photographs. If your negatives 
consistently tend to look too dense in the highlights then reduce your 
development time by another 10% or so. If they look underexposed in the 
highlights increase your development time by another 10% or so.  It 
shouldn't take long to come up with a single development time that works 
reasonably well for most of your negatives. Of course you need to be sure 
that you use the same temperature and agitation method every time.

----- Original Message ----- 
From: "peterzakos" <peterzakos@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Monday, June 20, 2005 10:52 AM
Subject: [Digital BW] Optimizing B&W film development for both digital and 
traditional darkroom


As a general rule, when developing B&W negs for both scanning and
traditional darkroom which paper grade (i.e. II or III) would it be
preferable to standardize my film development?  In other words,
should
I develop my negs for a lower or higher contrast?
Many thanks in advance to all who share their time and experiance in
answering my question.
Peter.




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