I recently purchased a Jobo 2521 tank to process 4x5 film. Previously I tried a yankee agitank and did not like the results of the negatives which had a lot of uneven development. Plus the agitank required a lot of chemistry.
I tried the Jobo for the first time with Ilford FP4 125. I used Clayton F60 developer at 68 F. I put the emulsion side of the film towards the center of the tank. I filled the tank with 560 ml of 1:9 developer. I inverted 2 times and rapped the tank and began rolling the tank back and forth on the counter, 1 revolution in each direction about every second throughout the 5.5 minute development time which is what the chart indicated.
The negatives came out without spots and appear to be evenly developed with adequate density. However they are extremely flat with very little contrast. The shots were taken in bright sunlight outside using sunny f/16 exposure.
I don't develop a lot of 4x5 film and would like to continue to use the Jobo tank manually. I have done tray development but it uses a lot of chemistry and I would prefer to develop in the light.
I would appreciate any suggestions or ideas.
Bill
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