Things seem to be going well so far, the films come out of the tank with decent-looking negatives on them.
I have a roll of Shanghai GP3 100 that I shot at 400, to try out push processing and see how it looks. How much should I extend development time? I have difficulty finding a rule for push processing that actually gives a number (maybe my google-fu is weak). My developer is Kodak TMAX.
ETA: I checked a bit more and tried thinking (always a difficult task). The Massive Dev Chart suggests 7 minutes for GP3 100 shot at box speed, and the developer's booklet says 8 minutes for TMax 100 at EI 100, 12 minutes for EI 400. So 11-12 minutes for GP3@400, and add a minute or two for dev exhaustion.
Last edited by Arctic amateur; 09-16-2012 at 06:22 PM. Click to view previous post history.