Pyrocat Development Information

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From: Sandy King (sanking@hubcap.clemson.edu)
Date: 03/01/01-07:40:11 AM Z


I have received quite a number of requests for developemnt information for
Pyrocat over the past 24 hours. Hope that the following information
addresses all request. If not please contact me directly.

1. Negatives for silver printing -- Use a 1:1:100 dilution and use the same
times as with PMK, or perhaps about 10% less.

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film tested was outdated, though still with a very low B+F.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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