I've been fighting with some intermittent processing issues using a Jobo 2840 drum for 8x10 and 11x14 film. I now know those issues are due to the tank clips to hold the film in place, and the agitation done by a Uniroller or a Simma Roller. As a result I'm in the process of moving to processing in trays in the darkroom.
As a refresher, I pulled out my copy of Ansel Adams "The Negative", and "The Ansel Adams Guide - Basic Techniques of Photography - Book 1". Both mention placing the each sheet on the top of the stack with a downward "wiping" action.
What I'm missing is, what is a downward "wiping" action???
Zane
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