D-19 should still be available. We use it here to process electron microscope negatives.
D-76 and D-19 have very similar constituents. D-19 has uses sodium Carbonate to raise the pH of the developer. D-76 uses Borax - which has a lower pH than Sodium Carbonate. D-19 also has Pottasium Bromide which acts as an antifoggant. If you wanted to experiment you could add some washing soda (washing soda is usually made of sodium carbonate) to D-76 - this would raise its pH something similar to d-19 - although it will likely fog, without any pottasium bromide. You could get an idea of whether or not D-19 would work in your situation If the trouble you have with d-76 is a metol skin sensitivity, you might want to try Ilford's ID-11. I believe its very similar to d-76 except that is uses phenidone instead of metol -people are usually not sensitive to phenidone. Gord On Thu, 18 Jul 2002, Shannon Stoney wrote: > I finally succeeded in making a good negative for cyanotype with HP5+ today. > I processed it for 20 minutes at 85 degrees. I shot it at 3200 in my > pinhole camera. The subject was a test scene that I set up, with a gray > card, a piece of denim which measured two stops darker than the gray card > for zone III, and a white plastic chair which was zone VII. The denim > measured .31 and the chair 1.86. This is close enough for government work. > But again, if the contrast of the scene was low and development needed to be > expanded further, it would be difficult, I think, without simmering the film > on the stove or something for half an hour or so! > > --shannon > --------------------------------------------------------- Gordon J. Holtslander Dept. of Biology hol...@duke.usask.ca 112 Science Place http://duke.usask.ca/~holtsg University of Saskatchewan Tel (306) 966-4433 Saskatoon, Saskatchewan Fax (306) 966-4461 Canada S7N 5E2 ---------------------------------------------------------