I did part of that last thing once. I compared hydroquinone-sulfite-hydroxide-bromide with ascorbic acid-sulfite-hydroxide-bromide for graphic arts. The results were quite similar. Don't remember much about it, but used it once to do a simulated line drawing of conductor Russell Stanger for the Norfolk Symphony's program booklet from a photo I took of him. There was no Metol, but it shows the developing power of ascorbate as sole agent when pH is high enough. Both needed great gobs of bromide to keep fog away.
Originally Posted by Alan Johnson