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From: smith@umn-cs.UUCP (Richard Smith)
Newsgroups: net.rec.photo
Subject: Re: Home Color Darkroom - (nf)
Message-ID: <473@umn-cs.UUCP>
Date: Fri, 15-Jun-84 21:03:57 EDT
Article-I.D.: umn-cs.473
Posted: Fri Jun 15 21:03:57 1984
Date-Received: Fri, 22-Jun-84 03:09:53 EDT
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Organization: Computer Science Dept., U of Minn, Mpls, MN
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#R:ism780:21200001:umn-cs:9000016:000:1703
umn-cs!smith    Jun 15 18:04:00 1984

Re: Home Color

    Cibachrome is a slide printing process.  I've been doing it at home
for about 5 years now.  I've been happy with it.  The plusses:
 1 Minimum space.  I've usually had to use a closet as a 'darkroom': you
   just need enough dark space for the enlarger, yourself, and the light
   tight drum.  This is true of all drum-oriented processes though.
 2 The chemistry is almost as simple as black and white processing.  There
   are 3 chemicals, 3 minutes each.  Temperature is recommended to be
   at 75 degrees (give or take 3), but they have a chart for temperatures
   from about 68 to 80 degrees or so.
 3 The Cibachrome drum is probably the least expensive on the market.  It
   handles 5x7 and 8x10 fine.  For about $10 you can buy an extra tube
   for it that handles 11x14 prints, too.  You don't HAVE to use the
   Cibachrome drum though, nor do you probably have to be doing Cibachrome
   to use their drum.
 4 Cibachrome is the most permanent color photo process there is.  Other
   color processes produce the color dies chemically during processing.
   Cibachrome dies are built into the paper.  The image is created by
   bleaching out excess dyes in the paper, leaving stable dies to make
   up the photographic image.

The minuses:
 1 Cibachrome is expensive.  I think it's running about $2.50 per 8x10
   processed at home to pay for chemicals and paper.
 2 The glossy paper is the best but the matte surfaced Pearl paper is
   the cheapest.  The glossy costs about TWICE as much per pack. I thought
   they were kidding when I found that out.
 3 Cibachrome is weak on contrast control.  There really isn't any.

Rick.
[smith.umn-cs@CSNet-Relay]
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