Originally Posted by
Doremus Scudder
For some reason, unless you get the agitation just right with 120 film, there is turbulence at the edges resulting in increased edge density (like your examples). If you have an agitation regime that works and consistently delivers even development, go with that! I remember exposing roll after roll of 120 under my enlarger and then processing with different agitation schemes until I hit on one that worked well all the time. Surprisingly, I had to agitate rather vigorously to get even development with 120. When I switched to sheet film and tray processing, I never looked back.
Best,
Doremus
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