E-72 Paper Developer
Chris Patton’s E-72 paper developer.
Recipe
| Chemical | Amount |
|---|---|
| Water (50°C) | 750 ml |
| Phenidone | 0.3 g |
| Sodium sulfite (anhydrous) | 45 g |
| Ascorbic acid | 19 g |
| Sodium carbonate (anhydrous) | 77 g |
| Potassium bromide | 1.9 g |
| Water to make | 1000 ml |
Mix chemicals in the listed order. Make sure each chemical is completely dissolved before mixing the next one. Use distilled or deionized water for improved keeping properties. The stock solution may be diluted with tap water at the time of development.
Usage
Dilute between 1+1 and 1+4, with 1+3 for normal contrast.
Comments
Dekol-type developer substituting ascorbic acid for hydroquinone and phenidone for metol. Rumor has it that this is a pretty good developer that produce deep blacks.