steve_mepsted Posted August 23, 2021 Share Posted August 23, 2021 Hi there hoping you can help - I recently shot a 120 roll of agfapan apx 25 on 400 asa/iso and cant seem to find development times for push-processing this at home. I will be using Rodinal and any advice would be greatly appreciated. Many thanks and best wishes Steve Link to comment Share on other sites More sharing options...
Mike Gammill Posted August 24, 2021 Share Posted August 24, 2021 On Massive Development Chart Rodinal only goes to E.I. 25. The closest I can find is E.I. 200 for XTOL. Link to comment Share on other sites More sharing options...
maris_rusis Posted August 24, 2021 Share Posted August 24, 2021 With a 4 stop underexposure there may not be much develop-able silver halide in the emulsion. Areas of the film could remain blank no matter what you do. If I were in this situation I'd try an "infinity" development time. Somewhere between an hour and a day shouldn't make much difference. Link to comment Share on other sites More sharing options...
glen_h Posted August 24, 2021 Share Posted August 24, 2021 Diafine only gets it to 50. Diafine on Panatomic-X gets to 160 or 250, depending on when it was boxed. Xtol is one of the few developers for the highest speed on TMax3200, so I would go for that. The more dilute 1:3 will be approaching stand, which is probably the best way to go. The chart says 21.5 minutes (I wonder who thought about the .5) for Xtol 1:3. As above, you could go to an hour with Xtol 1:3 for a little better chance. 1 -- glen Link to comment Share on other sites More sharing options...
rodeo_joe1 Posted August 25, 2021 Share Posted August 25, 2021 +1 to Glen's suggestion. Slower film is naturally contrasty, and over developing (Aka "pushing") in a full-strength developer will just give you blocked highlights and empty shadows. So an extended development in a very dilute developer is your best option. I still wouldn't expect much shadow detail though, but the highlights should be print/scanable. Link to comment Share on other sites More sharing options...
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