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Ansco 40 M-H Film Tray Developer

FormulasThis is a brilliant metol-hydroquinone tray developer for roll, pack and sheet film


To make the stock solution:

Hot Water (125F or 52C) 900 ml
Metol 4.5 g
Sodium Sulfite, anhydrous 14 g
Hydroquinone 7.5 g
Sodium Carbonate, monohydrated 54 g
Potassium Bromide 3 g
Water to make 1 L


For use dilute 1 part stock solution with 2 parts water.

Developing time 4 to 5 minutes at 68F (20C).


From Ansco Formulas for Black and White Film by GAF, 1948 – Formulas are provided for historical reference. They may not work well with modern films and papers. Some of the chemicals can be dangerous. As with all photographic processes, be careful.