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Author
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Topic: Still Double Inventory-ing Cyan & Magenta?
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Stephen Furley
Film God
Posts: 3059
From: Coulsdon, Croydon, England
Registered: May 2002
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posted 03-22-2008 05:22 PM
Given that no VD track recordings hace been recorded for something like 40 years, none of the existing negatives would have been made for cyan printing. I still don't really understand why differences in negatives are required for different printing systems, can somebody please explain? I know it's something to do with cross-mod, and I beliece the equivilent on VD tracks would be inter-mod, but the precise details of optical sound recording are not my strong point. Given that the silver in a conventional track blocks white light, and infra-red, and that the dye in a cyan track blocks red light, why doesn't the area of dye, or silver, at any point on the track need to be the same in both cases.
Two colour Cinecolor prints had a track which was quite similar in colour to a modern cyan one, and at least some of these were VD. These tracks played with conventional exciter lamps and photocells. I was told that the blue-green image, and therefore the track, was produced by toning with a compound which happened to absorb strongly in the infra-red, but I don't know the details.
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