While there may have been discussion of pushing color film, my comments were directed specifically to Bill's reference on testing B&W neg film. Why else would he be asking for Acufine & Microphen. Perhaps two discussions got tangled up here. But Bill and i were discuss ing B&W neg film.
Paul Stenquist wrote: > > We were not discussing BW film. We were discussing C41 processed color > film. And the techniques that work with BW work to some extent with certain > C41 films. however, I think Bill is right in saying that push processing of > C41 does little to increse fim speed. Of course a more contrasty, > underexposed C41 neg will print better than a flat, underexposed C41 neg. > On the other hand, the original inquiry was in regard to 800 MAX. This is a > consumer film designed for point and shoot cameras, and it has a very wide > latitude. It will generally yield acceptable results within a range of 2 or > 3 stops, but isn't really stunning even when exposed perfectly. > Paul > > Shel Belinkoff wrote: > > > Yes, I think we can agree on that, but ... if, for example we shoot a > > 400 speed film at 800 and extend development because the contrast range > > of the scene is low - low enough so that "underexposing" the film by a > > stop there's still enough shadow density to allow for good detail, with > > the extended developing time being used not so much as an attempt to > > rescue lost detail but to increase the highlight density, would you > > still call that a "push"? IOW, there's no real attempt to increase film > > speed so much as there's an attempt to increase the contrast range - a > > typical expose for the shadows/develop for the highlights scenario. Of > > course, for those not familiar with all this, we're discussing B&W > > negative film here. > > > > William Robb wrote: > > > > > I define "push processing" as developing the film longer than > > > the "normal" development time, in an attempt to increase the > > > film speed. > > > > -- > > Shel Belinkoff > > mailto:[EMAIL PROTECTED] > > http://home.earthlink.net/~belinkoff/ > > - > > This message is from the Pentax-Discuss Mail List. To unsubscribe, > > go to http://www.pdml.net and follow the directions. Don't forget to > > visit the Pentax Users' Gallery at http://pug.komkon.org . > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . -- Shel Belinkoff mailto:[EMAIL PROTECTED] http://home.earthlink.net/~belinkoff/ - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
