Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!linus!philabs!seismo!rochester!ritcv!kar From: kar@ritcv.UUCP Newsgroups: net.rec.photo Subject: Re: RE: GOOD INEXPENSIVE FILM AND PROCESSING Message-ID: <417@ritcv.UUCP> Date: Wed, 22-Jun-83 14:25:47 EDT Article-I.D.: ritcv.417 Posted: Wed Jun 22 14:25:47 1983 Date-Received: Fri, 24-Jun-83 12:33:31 EDT References: fluke.991 Lines: 21 Regarding the recent discussion of 5247 and 5293 slide films: Note that these are negative films. To obtain slides, the processor must expose a transparent "print" material to the negatives. The slides you get are not what went through your camera (the negatives are). So what? This means that the proper way to place the slides in your projector is with the emulsion side facing AWAY from the screen, unlike "real" transparencies. Since it is the emulsion shrinking more than the film base that causes the slide to curve, the slides you get from 5247 curve in the wrong direction compared to "real" transparencies. So what? If you have a recent Kodak projector (maybe other brands too, I'm not sure) the projection lens is compensates for the curve in normal slides because it is designed to have a curved plane of focus. If your slides curve the other way, it will be impossible to get them focused in the center and the edges at the same time. I found it so objectionable that I switched back to "real" transparency film, even though it costs more than twice as much. Ken Reek, Rochester Institute of Technology seismo!rochester!ritcv!kar