Just when I thought I had exposure and development nicely set, a conundrum arose which I hope someone may be able to help me resolve. Since there are a number of variables, I am attaching a zip file of a Word document with a full explanation, since it will otherwise make a very long post.
In brief, it pertains to exposing a set-up twice, placing two materials of different reflectance on the same zone and getting results about a stop and a half apart.
I'd be grateful if someone can explain it or suggest a new test to isolate the issue.
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