I swear that the pyrocat gods hate me...
So I've been playing around with manipulating CI using divided pyrocat processed in 8x10 BTZS tubes (my negs are a zone VII exposure of an evenly illuminated surface within 1/5 stop). But as the CI increases I'm noticing that the ridges inside the tubes are leaving impressions of some kind - maybe stain? The process that I'm currently using is:
- FP4, Pyrocat-P, 75F, Part A 1:6 w/ a few drops of working photoflo solution, Part B 1:6
- 5min presoak @ 75F
- Agitate Part A by shaking tube for first 30sec then spin (on counter or in bath - I've done both because I find that the tubes don't spin well in a bath - at all - and that my results are uneven)
- 15 sec drain
- Agitate Part B by shaking tube for first 1min then spin as above
- stop or water stop
- rapid fix out of tube 5min
I've read about every post on these boards, and others, regarding uneven development and different agitation cycles and methods but I haven't come across anything that addresses this issue.
I'd love to hear people's thoughts.
Thanks everyone,
Mikew
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