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Re: Reciprocity & dev times FP4+ with PQ dev.

Miles

15:34 23 Apr 07

Re: Reciprocity & dev times FP4+ with PQ dev.

Steve Nicholls

18:53 24 Apr 07

The tables for ExpoDev that Phil has provided are excellent. I have tested a couple of films that are not on the list but used "other" film values with great success. I basically created 3 ExpoDev files for the film in question with similar film reciprocity values selected from the data provided in ExpoDev.I then exposed 3 sheets under conditions that gave me exposure corrected in Expodev and developed accordingly. I then did a quick test print of each to see which one best handled the situation.

For example I have tested Foma 200 in PMK a combination that is not covered at all but using Phil's data for a classic 200 film my results are very acceptable.

For Efke 100 for most general developers I use the data for D76.

For the developer you wish to use try the D76 values and also one with a diluted developer such as DDX or HC110. Do a couple of sheet and examine your results.