From: Carl Weese (cweese@earthlink.net)
Date: 03/01/01-06:10:08 AM Z
Sandy,
A quick caution on the TXT times. Gordon Hutchings also in his PMK book
shows TXT requiring longer development than HP5-Plus, but I have never
encountered this, with any developer, any agitation technique, or any
desired final contrast range. I always find HP5 to require anywhere from 25%
to 75% longer development than TXT to achieve similar contrast. Perhaps TXT
has a sluggish response to pyrocat, but the outdated material may have
skewed this particular result.
But it's great to have the starting test times for all these combinations,
thanks for posting them.---Carl
------------ >From: Sandy King <sanking@hubcap.clemson.edu>
> 2. For combo printing with silver + pt/pd -- Use a 2:2:100 dilution and > develop for the following times for a DR of approximately 1.4, when > subject luminance range is about 7. > BPF 7 minutes at 72F > HP5+ 9 minutes at 72F > TXT 10 minutes at 72F > FP4+ 6 minutes at 72F > > 3. For alternative printing only for a DR of approximately 1.6, use the > 2:2:100 dilution and develop as follows. > > BPF 11 minutes at 72F > HP5+ 13 minutes at 72F > TXT 20 minutes at 72F > FP4+ 10 minutes at 72F > > Development based on rotary processing in tubes with continuous agitation. > Times are only guides. TXT times in particular may be suspect because the > film tested was outdated, though still with a very low B+F. > > Sandy King > > > >
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