Archived posting to the Leica Users Group, 2005/06/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Richard, Sorry to reply so late, I've been sick. IIRC, sodium sulfphite (a google will turn up the right chem if I got this wrong) in many popular developers is a grain disolver. Hence the term "solvent developers" for D76, XTOL and the like. I was just speculating that XTOL in a Jobo with continuous agitation might be increasing the grain solvency effect. I use HC110, Acutol and the like, but with D76 and XTOL, I believe many folks use higher dilutions to diminish or eliminate the grain solvency effect. At higher dilutions, the sodium sulphite (?) can't do its magic. So you might try a rerun of your XTOL / Jobo experiment with a more dilute XTOL soup (more water, longer time). Make sense? Scott Richard wrote: > Scott, do you mean my comment re: my negs seem not as contrasty as > people said they would be? What exactly do you mean by "grain solvency > effects?" > > I will pick up the Cookbook next time I drop by K&S. I flipped through > it several times already. > > At 03:10 PM 6/14/2005, Scott McLoughlin wrote: > >> .... >> I wonder if what you're seeing with XTOL in your Jobo tank is more >> sodium sulfite sloshing around with greater grain solvency effects. >> Dunno, just pure speculation. >> >> BTW, after you get going, you might find "The Film Developers Cookbook" >> a good read. Fascinating stuff, especially when you can start to >> relate it to >> one's own experimentations and results. >> ... > > > // richard (This email is for mailing lists. To reach me directly, > please use richard at imagecraft.com) > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information