So - as promised - here are my 'my numbers'
Jobo 1520 (?? - simply the smallest one for 4x5") with the 2509N reel - I use with 6 4x5" films - no problem
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I rate the film at about EI 320
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Chemistry:
- Pyrocat HD: 1:1:100 (the Pyrocat is made with Glycol by Photographer's Formulary)
- Ilford Ilfofix 1:4
- Kodak Hypam - to support the washing of the fixer (my understanding)
- @ 21 degrees Celsius
- photo flo (cca 1:300)- some "local' stuff - should be ecological
- water stop - tap water
Development procedure:
- 4 minutes presoak
- development: 10 minutes, agitation: constant slow rotation (changing direction - limited table size
)
- clean water stop: 4 minutes (constant rotation)
- 1 - 2 water exchanges - to keep the developer out of the fixer
- fixing - 10 minutes (the magenta backing needs time to resolve)
- water wash (either change 2 - 3 times or use the JOBO hose to flush the drum for about 3 - 5 minutes)
- kodak Hypam - about 4 minutes
- clean water wash - 5x change or flush for 5 - 7 minutes
- photo flo (cca 1:300) for 1 minute
good luck
P.S. If I were doing inversion agitation with 4 full inversions every 3 minutes (plus 30 second at the beginning), my development time would go from 10 minutes to 12. I use the same development times with Delta 400.
P.S.2: the above was based on the information provided along with the pre-mixed Pyrocat HD from Photographer's Formulary
P.S.3. You may want to go with a different fixer - namely the TF4 or TF5 (is the name correct??) that is alkaline - it 'should' was less of the pyro stain away from your negatives - but I have no experience on this