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Ferricyanide and RC Paper
"Lew" wrote in message ... I plan to experiment with cleaning up print highlights this weekend via ferricyanide solution & refixing, so I'm googling around for whatever tips I can find. A thread on APUG suggests that this won't work on RC prints, yet another assures that it will. Any comments on this dilemma? Ferricyanide is used in Farmer's reducer. It will work on any paper or film. There are some variations of Farmer's mainly in the strength of the bleach. Farmer's can be used in two ways: 1, bleach and hypo combined; 2, bleach used first and then the hypo. The first tends to reduce low density areas first, the second reduces more or less uniformly reducing contrast. To clean highlights the first is probably better. After a print or negative is treated with Farmer's it should be re-fixed and thoroughly washed. Farmer's converts some of the silver to silver ferricyanide which will eventually cause a stain if left in the emulsion. It will also tone so reduced prints should be fixed and washed again before toning. -- Richard Knoppow Los Angeles, CA, USA |
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