Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site noscvax.UUCP Path: utzoo!linus!decvax!ittvax!dcdwest!sdcsvax!noscvax!jim From: jim@noscvax.UUCP Newsgroups: net.rec.photo Subject: Re: fading memories Message-ID: <581@noscvax.UUCP> Date: Mon, 13-Aug-84 02:42:51 EDT Article-I.D.: noscvax.581 Posted: Mon Aug 13 02:42:51 1984 Date-Received: Tue, 14-Aug-84 19:20:12 EDT References: <3164@decwrl.UUCP> Organization: Naval Ocean Systems Center Lines: 13 > There was some recent discussion of dye stability in color printing. > I have one question. What about the dyes in slide film? I use slide > film exclusively, printing my favorite shots. Are the slides subject > to fading as well? > Vick Bennison Yes. As far as I know, the dyes used in chromogenic materials such as Koda- chrome, Ektachrome, Agfachrome, Fujichrome and most other "chromes" are some- what unstable. Chromogenic materials also contain residue color couplers that discolor with time. (I was going to say more, but it's almost 3 am). The bot- tom line is: Kodachrome dyes have good dark stability. Ektachrome dyes have better light stability. Cibachrome dyes have better light and dark stability than either of the other two. -jim@nosc (zaun)