Soft working developer designed for color separation negatives.
|Mix chemicals in order.|
|Sodium sulphite anhydrous||50||grams|
|Water to make||1||liter|
For tray processing pre-soak the film for 2 minutes in plain water. Do not dilute and develop for 5–7 minutes.
For tank use, dilute 1:1 and develop for 8–12 minutes at 21°C.
Note: formula was first published by Louis M. Condax, in “Color Separation Negatives with Film Packs”, The Camera for May 1938.