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Topic: Color shifts in LOTR (Two Towers)
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John Pytlak
Film God

Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
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posted 01-02-2003 01:00 PM
Yes, release prints are usually made from a duplicate negative that requires no (or almost no) scene-to-scene printer light changes.
Usually, the original negative is timed on an electronic color analyzer, then an "answer print" is made for final approval of the scene-to-scene color timing. That color timing is used to make the timed master positive, from which the duplicate negatives used for release printing are made.
Here's some information about how it's done:
http://www.kodak.com/US/en/motion/support/h61/
http://www.kodak.com/US/en/motion/support/h1/printing.shtml
http://www.acvl.org/manual.htm
Kodak avoids the use of the term "safelights", since ANY visible light will eventually fog unprocessed film over a period of time. "Darkroom Lighting" or "Process Lighting" are the preferred term:
http://www.kodak.com/US/en/motion/support/illumination/page01.blind
If print film is fogged by excessive exposure to an amber or sodium-vapor "safelight", the fog is usually blue or cyan in color.
If the film was accidently exposed to "white light" (tungsten, fluorescent, daylight), the fogging affects the yellow layer first, and will be yellow or brown in color.
A green light will produce magenta fogging.
A red light will produce cyan fogging.
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