Re: Coffee bean grinder + Chris's prints & blather
----- Original Message ----- From: "Jack Fulton" <email@example.com>
Sent: Wednesday, November 12, 2008 5:46 PM
Subject: Coffee bean grinder + Chris's prints & blather
I wonder if you have a citation to this formula? Some of Kodak's very early formulae had no numbers, this may be one of them. The only later Kodak glycin formula I can find is D-78, a film developer. Agfa had a couple of developers using glycin, Agfa/Ansco 130 and Agfa/Ansco 115. Neither use glycin alone. Glycin was popular in the 1930's and 1940's in conjunction with paraphenylenediamine for very fine grain film developers. PPD alone is too low contrast and loses to much speed. Glycin evidently makes a decent fine grain developer on its own.I'd think, Judy, you could buy a cheap coffee bean grinder and whirl that stuff to death to make it usable. Outside of course. Just a thought.Eric and company: What do you know about the keeping qualities of chemicals in general when they're bought in bulk but not used right away? I recently, for instance, threw out a large hunk of ferric ammonium citrate because it had turned into just that -- a really hard, solid hunk.
One problem with the very warm tone developers using hydroquinone alone or with glycin is that when diluted to yield the warmest tones they do not produce good blacks even when the paper is given very high exposures. AGFA 115 is better in this respect than AGFA 110, a hydroquinone only developer.
Note that AGFA had some developer formulas published in Germany and England with the same numbers but different contents than those published in the USA. This can lead to some confusion.
AGFA 130 was sold in cans as a good, general purpose, paper developer which was supposed to have greater capacity than Kodak D-72 (Dektol). Some find it less likely to give a green color to some papers. Actually, 130 is nearly identical to D-72 with the addition of 11 grams of glycin per liter of stock and 5 grams per liter of bromide instead of the 2 grams per liter in D-72. So, you can probably get just about identical results by adding the glycin and a bit of bromide to Dektol.
Glycin has gotten expensive and somewhat difficult to obtain.
Los Angeles, CA, USA