Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/17/84; site mhuxl.UUCP Path: utzoo!linus!decvax!bellcore!petrus!scherzo!allegra!ulysses!mhuxr!mhuxt!houxm!ihnp4!mhuxl!smh From: smh@mhuxl.UUCP (henning) Newsgroups: net.rec.photo Subject: Re: Slide film vs Color Neg. film Message-ID: <292@mhuxl.UUCP> Date: Sun, 3-Nov-85 23:17:20 EST Article-I.D.: mhuxl.292 Posted: Sun Nov 3 23:17:20 1985 Date-Received: Tue, 5-Nov-85 07:02:26 EST References: <298@tekig4.UUCP> <349@vaxwaller.UUCP> <5746@tekecs.UUCP> <1750@peora.UUCP> <218@astroatc.UUCP> Organization: AT&T Bell Laboratories, Murray Hill Lines: 22 **** **** From the keys of Steve Henning, AT&T Bell Labs, Reading, PA mhuxl!smh > the color rendition of color negative films is "truer" than for slide films. The color rendition of color negative films can only be true if you shoot a grey scale on one of the frames on each roll so the lab knows what filter pack to use when printing. All color negatives I have seen have an orange mask and need a strong compensating mask when printing, but in addition need tweeking to make white truly white. As you know, slides come out with as true a color as you are ever going to get. In fact you can compare the print with the slide and see if the print is right. You can never do that with a negative. > 2: The slide film has better latitude and contrast range. Kodachrome, Ektachrome and every other slide film I have ever used always built up contrast. That means you lose detail in the shadows. With negative films you can preserve the right contrast or use contrasty papers to change the contrast. One fine example of contrast build up is slide duplicates. Even special copy film still gives much contrast buildup unless you flash the film before copying.