An inexpensive fine-grain developer as published in “British Journal Photographic Almanac 1941”.
The following is an inexpensive fine-grain developer which is stated never the-less to give very excellent results.
| Ingredient | Quantity | |
|---|---|---|
| Mix chemicals in order. | ||
| Metol | 37 | grams |
| Sodium sulphite anhydrous | 136 | grams |
| Kodalk or Sodium metaborate | 57 | grams |
| Potassium bromide | 12.5 | grams |
| Water to make | 1 | liter |
For use, this stock solution should be diluted with eight volumes of water. Development times for super speed pan- chromatic material are of the order of 30 min. at 18.5 °C, or 22 min. and 18 min., respectively, for fast and for extra fine grain material.
The developer may be thrown away after use, but the stock solution will keep well if properly stoppered.
↬ “The Camera,” Lucerne, May, 1940, p. 327. B. J ., 1940, Sept. 13, p. 451 ᔥ Ian Grant