lauren@vortex.UUCP (Lauren Weinstein) (05/15/84)
Another aspect of the problem is that until the late 50's/early 60's, most color prints were made using three-layer (dye) film stock. For the most part, these were (and are) very stable. Around the end of the 50's, newer (and cheaper) one-layer stocks were introduced, which turned out to have miserable long-term characteristics. In particular, they are very likely to experience fading of the blue pigment, which results in the reddish tint that many 60's prints now exhibit. --Lauren--
adm@cbneb.UUCP (05/15/84)
#R:vortex:-31300:cbnap:19600001:000:516
cbnap!cmv May 15 11:05:00 1984
[ Isn't it neat that some people will never see this line... ever?]
As I understand it, Kodak (those gods of the film stock industry) have come
up with a process to "revitavize" these faded film prints and restore them to
their original "vibrant" colors. I heard about this a few years ago, but never
was able to get information on what the process is. Anyone out there in net-
land know about this?
Craig Votava
AT&T Bell Laboratories, Columbus
...ihnp4!cbnap!cmvadm@cbneb.UUCP (05/16/84)
#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.