Re: Pd with dichromate contrast control
Camden, Dick has such a conversion chart in the second edition of his book. Best Wishes, Mark Nelson Precision Digital Negatives - The System PDNPrint Forum at Yahoo Groups www.MarkINelsonPhoto.com In a message dated 12/14/06 11:22:46 AM, camden@hardyphotography.net writes: I've been using the Dick Arentz method of pd contrast control with various concentrations of the Na2 solution. I'd like to try printing pure palladium with ammonium dichromate for contrast control, as I've heard someone mention in the past. So my question is, how does one method translate to the other? What kinds of quantities/dilutions of am. dichromate would I need to use to get comparable contrast results to Arentz's 1s/2s/3s solutions? I realize this is an apples/oranges question before asking it, but I'm having trouble finding a better analogy. :) Thanks, Camden Hardy
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