This formula is a universal developer for all projection and contact papers. It gives rich black tomes with excellent brilliance and detail. Ansco 130 provides unusual lattitude in development and is clean-working even with long developing times.
Stock solution
Hot Water (125F or 52C) | 750 ml |
Metol | 2.2 g |
Sodium Solfite, anhydrous | 50 g |
Hydroquinone | 11 g |
Sodium Carbonate, monohydrated | 78 g |
Potassium Bromide | 5.5 g |
Glycin | 11 g |
Water to make | 1 L |
The prepared soick solution is clear but slightly colored. The coloration in this case does not indicate the developer has deteriorated or is unfit for use.
For use, dilute 1 part stock solution with 1 part water.
Normal developing time at 68F (20C) for Brovira, 2 to 6 minutes, for Convira, Cykon, Cykora and Indiatone, 1 1/2 to 3 minutes.
Greater contrast can be obtained by using the developer stocker solution full strength. Softer results can be obtained by dilution 1 part stock solution with 2 parts water.
(Ed. Note – While the papers mentioned are long gone, this developer still works well with modern papers. Most folks mix it, then dilute 1:1 and store that as their working solution. Many report it keeping nearly a year in glass bottles. Thus, it’s very economical. Also. Some folks use it diluter 1:10 or so as a film developer.)
From Ansco Formulas for Black and White Film by GAF, 1948 – Formulas are provided for historical reference.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.