Say goodbye to cyanide: a less toxic approach to fixing wet collodion plates
Elizabeth Graves experiments with Waldack’s Formulas for Collodion Positives “Formula No. 1. For Dead-Whites” followed by a sodium thiosulfate fixer.
Waldack
Elizabeth Graves experiments with Waldack’s Formulas for Collodion Positives “Formula No. 1. For Dead-Whites” followed by a sodium thiosulfate fixer.