The DARKROOM COOKBOOK, Third Edition

214 THE DARKROOM COOKBOOK
For Kodak D-23 add 22.0 ml for each 80 2 inches of fi lm discarding some developer if necessary
to keep the original volume.
For Kodak D-25 45.0 ml of replenisher should be added for each 80 2 inches of fi lm, for
the fi rst 12 rolls per liter. For the next 12 rolls per liter, add only 22.0 ml per roll. Discard the
developer after 20 rolls have been processed.
General-Purpose Developers
FORMULA #16
Ansco 42
Water at 125F/52C, 750.0 ml
Metol, 0.8 g
Sodium sulfi te, 45.0 g
Hydroquinone, 1.2 g
Sodium carbonate, monohydrate, 8.0 g
Potassium metabisulfi te, 4.0 g
Potassium bromide, 1.5 g
Water to make 1.0 liter
Do not dilute for use. Develop 15 to 20 minutes at 68F/20C.
FORMULA #17
Ansco 47
This is a long-lived, clean-working formula. It is ideal for producing brilliant negatives in controlled
lighting situations (i.e., studio) or for low-contrast landscapes.
Water at 125F/52C, 750.0 ml
Metol, 1.5 g
Sodium sulfi te, 45.0 g
Sodium bisulfi te, 1.0 g
Hydroquinone, 3.0 g
* Sodium carbonate, monohydrate, 6.0 g
Potassium bromide, 0.8 g
Water to make 1.0 liter
* Sodium carbonate, anhydrous, 5.0 g
For tank development, dilute 1:1 with water and develop for 8 to 12 minutes at 68F/20C. For
tray development, use undiluted for 5 to 8 minutes at 68F/20C.
FORMULA #18
Ansco 47a
Replenisher for Ansco 47
Water at 125F/52C, 750.0 ml