This is a long-life, clean-working formula which will give excellent results as a standard film developer for either tray or tank development. Available in packaged form by ordering Ansco 47 developer.



Hot Water (125F or 52C) 750 ml
Metol 1.5 g
Sodium Sulfite, anhydrous 45 g
Sodium Bisulfite 1 g
Hydroquinone 3 g
Sodium Carbonate, monohydrated 6 g
Potassium Bromide 0.8 g
Water to make 1 L


Do not dilute for use.

TANK DEVELOPMENT: Normal developing time, 6 to 8 minutes at 68F (20C) with occasional agitation.

TRAY DEVELOPMENT: Normal developing time, 5 to 7 minutes at 68F (20C).

Or, for longer developing times with tank development, dilute one part developing solution with one part water and develop 12 to 1`6 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From Ansco Formulas for Black and White Film by GAF, 1948 – Formulas are provided for historical reference.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.