Formula 81 provides a single-solution developer of excellent keeping quality for the development of Reprolith Film.
| Hot Water (125F or 52C) | 750 ml |
| Hydroquinone | 35 g |
| Sodium Sulfite, anhydrous | 55 g |
| Sodium Carbonate, monohydrated | 80 g |
| Citric Acid | 5.5 g |
| Potassium Bromide | 10 g |
| Water to make | 1 L |
Do not dilute for use. Normal developing time not longer than 3 minutes at 68F (20C).
From Ansco Formulas for Black and White Film by GAF, 1948 – Formulas are provided for historical reference.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.
