High contrast film developer for extreme contrast on process films
| Stock Solution A |
| Water, 125F/52C | 500 ml |
| Sodium Bisulfite | 25 g |
| Hydroquinone | 25 g |
| Sodium Bromide | 25 g |
| Cold water to make | 1L |
| Stock Solution B |
| Cold Water | 500 ml |
| Sodium Hydroxide | 50 g |
| Cold water to make | 1L |
Mixing instructions: Add chemicals in specified sequence. Always use cold water when mixing potassium or sodium hydroxide due to risk of heat reaction.
Dilution: Mix equal parts. Use undiluted. Separate solutions will last well in storage, but once A+B are mixed, the working solution must be used within one hour
Starting point development time: 4 mins.
