Here is another formula for a developer which, like Defender 55D,
is midway between high activity developers like Dektol and low
activity developers like the late, lamented Kodak Selectol. This is
a Dassonville formula. Dassonville was paper maker during the
period from about the late 1920's to the early 1950's. Dassonville
(I've forgotten his first name) was a well known pictorialist
photographer who specialized in the paper negative process.
Dassonville papers were very well respected and were available in
special supports and surfaces for paper negative work, the main one
being a vellum like support called opaline parchment. This
developer was recommended for Dassonville's "Charcoal Black" paper.
Dassonville D-1
Water (at 125F or 52C) 500.0 ml
Metol 3.0 grams
Sodium Sulfite, dessicated 45.0 grams
Hydroquinone 11.0 grams
Sodium Carbonate, anhydrous 30.0 grams
Potassium Bromide 4.5 grams
Water to make 1.0 liter
For use dilute 1 part stock with 1 part water.
Exposures should be adjusted so that development is complete in 2
minutes at 70F
This should be a medium warm-tone developer for many papers.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
