The DARKROOM COOKBOOK, Third Edition

Formulas 247
Benzotriazole, 0.2 g
Glycin, 11.0 g
Water to make 1.0 liter
The recommended standard dilution is 1:1. Use full strength for maximum contrast or diluted
up to 1:3 for less contrast. Development times are between 3 and 6 minutes, with 5 minutes
recommended as standard.
High-Contrast Developers
FORMULA #73
Agfa 108
Water at 125F/52C, 500.0 ml
Metol, 5.0 g
Sodium sulfi te, 40.0 g
Hydroquinone, 6.0 g
Sodium carbonate, monohydrate, 40.0 g
Potassium bromide, 2.0 g
Water to make 1.0 liter
Use undiluted with a normal development time of 2 minutes. Longer development will
increase the contrast even more.
NOTE: Potassium bromide, in this formula, will cause a slight green cast with some papers.
20.0 ml of Edwal’s Liquid Orthazite can be substituted for the bromide.
FORMULA #74
Edwal 120
SOLUTION A
Water at 125F/52C, 500.0 ml
Pyrocatechol, 20.0 g
Sodium sulfi te, 40.0 g
Water to make 1.0 liter
SOLUTION B
Water at 125F/52C, 750.0 ml
*Potassium carbonate, anhydrous, 120.0 g
�Potassium bromide, 1.0 to 3.0 g
Water to make 1.0 liter
*134.0 grams of sodium carbonate monohydrate can be substituted for a less warm tone.
� Adding the minimum amount of potassium bromide will yield a print of neutral tone; adding
more will create an increasingly colder tone.
Mix 1 part of Solution A and 2 parts of Solution B with 1 part water.