If you get N for HP5 in Rodinal 1:50 for 10 minutes with 2 inversions every minute in combi plan tank, or in my case probably N-1/2 since I have always used ISO 400 emulsions in high contrast scenes, how long would you dvelope in 1:200 with no agitation? I have always rated HP5 at 160 in Rodinal. Will appreciate any suggestions.
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