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|
|Sodium Sulfite, anhydrous||45 g|
|Sodium Bisulfite||1 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From Ansco Formulas for Black and White Film by GAF, 1948 – Formulas are provided for historical reference.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.