High contrast developer for films.
| Ingredient | Quantity | |
|---|---|---|
| Solution A | ||
| Sodium bisulphite | 22.5 | grams |
| Hydroquinone | 22.5 | grams |
| Potassium bromide | 22.5 | grams |
| Solution B | ||
| Sodium hydroxide | 52.5 | grams |
| Cold water to make | 1 | liter |
| Mix chemicals in order. | ||
The sodium hydroxide should not he dissolved in warm water, as spattering is apt to occur.
This developer does not keep and should he freshly made.
Mix 1:1 and develop about 2 minutes at 18.5° C.