I am using a Jobo 4531 tube on a Jobo rotary base to process 10x8 b&w film but am not sure about the time adjustment - if any - I should make when using a rotary processor? Digital Truth state on their massive dev chart that a time reduction of 15% should be made when using a rotary processor, or rather it is advisable......
Firstly, I have two speeds of rotation on my Jobo base, so I'm not too sure which the 15% time reduction is applicable to? I would imagine the slower of the two but could someone confirm? Secondly, will developer (in my case Rodinal) exhaust much more easily over a longer period of time? If so, should I be diluting at 1:25 so that the process is shorter?
Many Thanks
Matthew
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