This reducer is useful for lessening the density and contrast of heavy negatives.
Solution 1
| Ferricyanide | 35 g |
| Potassium Bromide | 10 g |
| Water to make | 1 L |
Bleach in Solution 1 and after through washing, redevelop to desired density and contrast in Ansco 47 or other negative developer except fine-grain developers. Then fix and wash in usual manner. Conduct operation in subdued light.
From Ansco Formulas for Black and White Film by GAF, 1948 – Formulas are provided for historical reference. They may not work well with modern films and papers. Some of the chemicals can be dangerous. As with all photographic processes, be careful.
