This formula is recommended for those users of Ansco film who prefer pyro development. Stock solutions should be kept in stoppered bottles.
Solution1
| Sodium Bisulfite | 9.8 g |
| Pyro | 68 g |
| Potassium Bromide | 1.1 g |
| Water to make | 1 L |
Solution 2
| Sodium Sulfite, anhydrous | 105 g |
| Water to make | 1 L |
Solution 3
| Sodium Carbonate, monohydrated | 85 g |
| Water to make | 1 L |
TANK DEVELOPMENT: Take one part each Solutions 1, 2, 3 and add 11 parts water. Normal developing time, from 9 to 12 minutes at 68F (20C).
TRAY DEVELOPMENT: Take 1 part each Solutions 1, 2, 3 and add 7 parts water. Normal developing time, from 6 to 8 minutes at 68F (20C).
Solutions will keep well when stored separately but final developer should be used immediately after mixing.
