This developer will produce a variety of brown to warm black tones on various papers depending on dilution and exposure time.
STOCK SOLUTION
| Chemical | Amount | Units |
|---|---|---|
| Water (125°F/52°C) | 750 | ml |
| Sodium sulfite | 60 | g |
| Hydroquinone | 24 | g |
| Potassium carbonate | 80 | g |
| Water to make | 1000 | ml |
USING THE DEVELOPER
This developer will produce a variety of brown to warm blacktones on various papers,
depending on dilution and exposure time.
| Tone Desired | Exposure Time | Dilution | Time at 68°F/20°C |
|---|---|---|---|
| Warm-black | Normal | 1:5 | 4-5 minutes |
| Brown-black | 1½ x normal | 1:4 | 3 minutes |
Normal exposure when developed for 1-1½ minutes in Agfa 120 full strength will produce a brown-black image (Photo-Lab-Index).
NOTE
Agfa 123 includes 25 g of potassium
bromide in addition to chemicals of Agfa 120.
REFERENCE
Agfa 120 Paper Developer, The Darkroom Cookbook,
Stephen G. Anchell, p. 195.
Agfa 120 Paper Developer, Photo-Lab-Index, Section 15, Supplement 172, p. 38.