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From: adm@cbneb.UUCP
Newsgroups: net.movies
Subject: Re: film fading - (nf)
Message-ID: <807@cbneb.UUCP>
Date: Wed, 16-May-84 09:21:58 EDT
Article-I.D.: cbneb.807
Posted: Wed May 16 09:21:58 1984
Date-Received: Thu, 17-May-84 04:41:33 EDT
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Organization: AT&T Bell Laboratories, Columbus, OHIO
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#R:vortex:-31300:cbnap:19600002:000:1036
cbnap!tjl    May 16 08:50:00 1984

Yes, there is a restoration method that has been used successfully
with faded color slides.

A color separation set (three black and white negatives made through
three different color filters) are produced.  Then they are reprinted
onto color stock with extra emphasis in the color which is known to
fade most in that particular stock.  Some work was done in determining
the exact color correction needed by looking at the portion of the
slide which was covered by the cardboard mount and thus protected
from light-bleaching (but not other forms of fading).

Although there are technical problems with carrying this to film (varying
fading in different sections of film and registration), this method
probably could work.

By far the best approach is to produce the separation set from the
origional master before it has a chance to fade.  A few years ago
the cost of this safety precaution was around $50,000.  However
many directors (particularly those with clout) have been demanding
in their contracts that separtions be produced.