R110 Film Developer
Supposedly soft working phenidone, hydroquinone developer yielding nice mid tones akin to D-23 by Jay DeFehr.
Recipe
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.
Developer
| Chemical | Amount |
|---|---|
| Water (50 °C) | 750 ml |
| Sodium sulfite | 85 g |
| Hydroquinone | 1 g |
| Borax | 1 g |
| Potassium bromide | 1 g |
| Phenidone1 | 100 mg |
| Water to make | 1000 ml |
Replenisher R110R
| Chemical | Amount |
|---|---|
| Water (50 °C) | 750 ml |
| Hydroquinone | 1.6 g |
| Borax | 1.25 g |
| Phenidone1 | 200 mg |
| Water to make | 1000 ml |
Usage
The developer is replenish-able and should be used undiluted. Starting development time is in the 5 to 6 minute range at 20 °C. Replenish 70 ml per roll of film.
Footnotes:
1
Measuring small quantities of phenidone, see Phenidone Solution