The DARKROOM COOKBOOK, Third Edition

216 THE DARKROOM COOKBOOK
FORMULA #21
FX 37
For Tabular-Grain Films
(Geoffrey Crawley)
This developer was specially formulated for tabular and crystal grain fi lms. However, according
to Crawley it can be used for traditional fi lms when “the fi nest grain is not the prime
requirement.”
Water at 125F/52C, 750.0 ml
Sodium sulfi te, 60.0 g
Hydroquinone, 5.0 g
Sodium carbonate, anhydrous, 5.0 g
Phenidone, 0.5 g
Borax, 2.5 g
Potassium bromide, 0.5 g
Benzotriazole, 1% solution, 5.0 ml
Water to make 1.0 liter
Dilute 1:3 to 1:5. The higher dilution will increase fi lm speed.
Developing times for 1:3 dilutions at 68F/20C:
FORMULA #22
Ilford ID-68 (1960)
Film Time
Iford Delta 100 7.5 minutes
Ilford Delta 400 8 minutes
Ilford FP4� 4.5 minutes
Ilford HP5� 6.5 minutes
Kodak T-Max 100 8 minutes
Kodak T-Max 400 9 minutes
Kodak T-Max P3200 8 minutes
Kodak Plus-X 5.5 minutes
Kodak Tri-X 6 minutes
(Thanks to Ian Grant)
Microphen-type developer
Microphen is a fi ne-grain PQ developer that produces a ½ stop increase in fi lm speed without
a corresponding increase in graininess.
Water at 125F/52C, 750.0 ml
Sodium sulfi te, 85.0 g
Hydroquinone, 5.0 g