long exposures, reciprocity failure and development times

    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
Received on Tue Jun 4 10:57:45 2002