Archived posting to the Leica Users Group, 2003/02/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The latest issue of Photo Techniques has an interesting article by Dick Dickerson and Silvia Zawadzki (best known as the inventors of Xtol) about the new Kodak B&W films. (For those who haven't been keeping up with this, Kodak has moved production of all B&W films into a new facility, resulting in new coating techniques and therefore somewhat changed characteristics.) The article was apparently prompted by Kodak's publishing new developing times for some of the emulsions which varied by as much as 50% from the old recommendations. To summarize, the authors found that the developing times were little changed, but the big surprise was that the grain structures *were* changed, sometimes significantly. Of most interest is the fact that the grain of TMX and TMY actually increased -- substantially in the case of TMY. But the grain of Tri-X *decreased* significantly, with the result that the new Tri-X is finer grained than TMY. Coming from another source, I might be skeptical, but these authors are probably as expert on this subject as anyone on the planet. Has anyone actually had a chance to try the new Tri-X and, if so, what are your thoughts in light of the above? Rolfe - -- Rolfe Tessem Lucky Duck Productions, Inc. rolfe@ldp.com - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html