Ordinary sodium carbonate would seem to be an easier accelerant to fine-tune that sodium hydroxide, which is used in crystal form for very high contrast A&B lith developers, no acetone involved. But there's no arguing with Merg's results, which as usual are a delight to see.
Merg
Thanks for going back into your archives with the last few days posts. As Drew just said they are a delight to see.
This may work.
https://www.photrio.com/forum/thread...2#post-1578910
Scroll down to pages #32 & #35.
There is an interesting history here. The original Metol/Acetone formula that many use as g. Paul Bishop's formula, was refined in collaboration with my father. Paul was a very fine portrait photographer working out of Berkeley. The initial experiments were for 120 film. Another person involved in the development was John Below, also of Berkeley, who was a professional chemist. John made Amidol for Brett Weston on a barter basis. He ultimately had an excellent collection of Brett's prints! John devised the Phenidone print formula that I presently use and was a good friend for many years.
Thank you, Alan and Drew.
I should add, years of experimentation went into the final formulation of the referenced g. Paul Bishop developer. A talented group was involved, using the known chemical options. It was concluded, with the introduction of acetone, the developer had unique qualities. I was involved in some of those experiments, once developing a 120 roll that resulted without a trace of an image! But, they finally got it right.
Flikr Photos Here: https://www.flickr.com/photos/18134483@N04/
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