The DARKROOM COOKBOOK, Third Edition

Amidol, 16.0 g
10% potassium bromide, 12.0 ml
10% citric acid, 12.0 ml
FORMULA #114
DuPont BB Formula
Formulas 265
(Thanks to John E. Quick)
BB solution was a proprietary liquid restrainer marketed by DuPont, once a leader in the manufacture
of fi lm and paper. When added to a developer it will create cooler tones on enlarging
paper. It was reputedly used by Edward Weston in his amidol formula. According to Dody
Thompson, Edward’s former assistant and Brett’s second wife, Edward may have tried it at one
time but did not use it as he preferred warm tone images. Brett, on the other hand, preferred
cooler tones and may well have used BB while it was available.
DuPont ceased marketing photographic materials in the early 1970s.
Sodium sulfi te, 85.0 g
Benzotriazole, 15.0 g
Water to make 1.0 liter
Add BB solution 10.0 to 15.0 ml at a time to neutral or cold tone print developers until the
desired tone is achieved.
UNIVERSAL DEVELOPERS
FORMULA #115
Ilford ID-36
This is a “universal” developing formula for fi lm or paper. It is also recommended as a redeveloper
for bleached negatives or prints.
Water at 125F/52C, 750.0 ml
Metol, 2.0 g
Sodium Sulfi te, anhydrous, 50.0 g
Hydroquinone, 12.5 g
Sodium Carbonate, anhydrous, 72.0 g
Potassium Bromide, 10% solution, 7.5 ml
Water to make 1.0 liter
FILM: For tray development dilute 1:3 and develop for 3 to 5 minutes at 68F/20C. For tank
development dilute 1:7 and develop for 6 to 10 minutes at 68F/20C.
PAPER: Dilute 1:3. Develop for 1½ to 2 minutes.