I hate to even repeat this, as it is like a reoccurring nightmare etched
into my brain...(laugh)...
I studied under Wiley Sanderson at the University of Georgia and I remember
one of his most outspoken mantras was this...You cannot over-develop, you
can only prove under-exposure.
For what it's worth...I thought I would throw that out even though it may
not apply to this particular situation.
Ronnie Pettit
-Original Message-
From: Bogdan Karasek [mailto:bkara...@videotron.ca]
Sent: Tuesday, June 04, 2002 11:17 AM
To: pinhole-discussion@p at ???
Subject: Re: [pinhole-discussion] long exposures, reciprocity failure
and development times
Shannon Stoney wrote:
I have a chart that shows reciprocity failure adjustments for various
black and white films. This chart also suggests decreasing development
times as exposure times increase. The reasoning is that reciprocity
failure
affects the shadow areas more than the highlight areas. Is this correct?
I
also have a pinhole time calculator that suggests INCREASING development
times as exposure times increase. Which is correct? (Excuse the
cross-posting if you read alt-photo-process and pinhole-discussion.)
--shannon
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Hi,
All the charts that I have seen and from from personal
experience, an increase in exposure is always associated with a
proportionate decrease in development time.
Hope this helps.
Bogdan
--
__
Bogdan Karasek
Montréal, Québece-mail: bkara...@videotron.ca
Canada
Wovon man nicht sprechen kann, darüber muss man schweigen
What we cannot speak about we must pass over in silence
Ludwig Wittgenstein
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