Archived posting to the Leica Users Group, 2005/06/11
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On 6/11/05 2:04 PM, "Richard" <richard-lists@imagecraft.com> typed: > Some people don't believe there is such a thing as pushing a film. I asked > that a couple months ago re: Tri-X and got lots of different answers. > Search for the archive for that. The conventional wisdom is also that slide > films do not push as well. > > From my experience, pushing Provia 400F one stop is OK but I wouldn't do > two, exactly for the reasons you mentioned. > I'm skeptical of a lot of pushing in black and white but with some developers, usually ones you'd never want to use in a million years, you can get a stop out of it or perhaps even a tiny bit more. Xtol I believe gives you your real film speed and no more. No less. The best developers tend you give you the number on the box or darned close to it. The even better ones, Pyro, Glycin, others give you a tad less. They're worth it. Color slides though is a different thing and some slide films I think are designed for a push and seem to thrive on it. With full shadow detail and little if any overage of grain. I find In black and white the pushing of medium speed films to be a bizarre aberrance of logic and common sense. The use of the higher speed film is in order. Or let me just say that you're never going to get the results from Plus X to give an generic example supposedly pushed to 400 in Turbohype that you are with Tri X rated normally at 400 with excellent developers. I say "supposedly" about every time I use the term "push" become I've found in the vast majority of cases "pushing" is just under exposing with more development to keep the contrast the same. You're just not getting the shadow detail that's supposed to be there. But you ARE going to be able to use the same grade paper. But as stupid "pushing" often seems to me it's "pulling" that really gets me. Over exposure = death when it comes to quality black and white image making. And all "pulling" is is over exposing with a smug attitude. :)? Mark Rabiner Photography Portland Oregon http://rabinergroup.com/