2 inversions every minute
Recipes & dev times using Developer Photographers' Formulary Pyrocat HD
Ilford HP5+ 400 in Photographers' Formulary Pyrocat HD 1+1+100
18 minutes at 21°C/69.8°F
Five minute presoak. One minute initial agitation, three inversions every ...
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Ilford HP5+ 400 in Photographers' Formulary Pyrocat HD 2+2+100
10 minutes at 22°C/71.6°F
Ilford HP5+ 400 in Photographers' Formulary Pyrocat HD 1:1:100
13 minutes at 24°C/75.2°F
Ilford HP5+ 400 at 200 in Photographers' Formulary Pyrocat HD 1+1+100
9 minutes at 20°C/68.0°F