Agfa/Ansco 70

Process film developer

Part A
Potassium Metabisulfite25g
Potassium Bromide25g
Cold water to make1000ml
Part B
Cold Water750ml
Sodium Hydroxide36g
Cold water to make1000ml
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.
Usage: Starting point dev time: 3 mins.


50 grams of Potassium Hydroxide can be substituted for the 36 grams of Sodium Hydroxide specified in this formula.