Originally Posted by
Nodda Duma
Larry the rule of thumb I’ve used for my plates is add 50% time beyond 45 seconds and double the time above 2 minutes.
To be honest Kent probably has better working knowledge nowadays with my plates than I do and can tell you better... Between work, coating and testing plates, kids, and shooting slide film for the fall colors, I haven’t found a lot of time to shoot my own plates outside of characterization exposures..and my exposure times are typically only a few seconds where reciprocity isn’t an issue.
Cheers,
Jason
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