Process film developer
| Stock Solution A |
| Water | 750 ml |
| Hydroquinone | 25 g |
| Potassium Metabisulfite | 25 g |
| Potassium Bromide | 25 g |
| Cold water to make | 1L |
| Stock Solution B |
| Cold Water | 750 ml |
| Sodium Hydroxide | 36 g |
| Cold water to make | 1L |
Mixing instructions: Add chemicals in specified sequence. When mixing, due to the risk of heat reaction, make sure to dissolve sodium hydroxide (or potassium hydroxide) in cold water only.
Dilution: Mix equal parts A+B immediately before use.
Starting point development time: 3 mins.
Notes: 50 grams of Potassium Hydroxide can be substituted for the 36 grams of Sodium Hydroxide specified in this formula
