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From: davew@shark.UUCP (Dave Williams)
Newsgroups: net.movies
Subject: Re: More Wizard of Oz
Message-ID: <29@shark.UUCP>
Date: Thu, 13-Oct-83 17:15:42 EDT
Article-I.D.: shark.29
Posted: Thu Oct 13 17:15:42 1983
Date-Received: Sat, 15-Oct-83 03:33:30 EDT
References: <619@eisx.UUCP> How the Technicolor process worked:
Organization: Tektronix, Wilsonville OR
Lines: 15

I didn't answer this in my last article so here goes.
The negatives used were standard b/w negative film.
The camers had an optical system that gave 3 identical
images at the 3 film gates. A red, yellow and blue
filter was used at the 3 gates so that the 3 primary
colors (subtractive) had the most density on each
negative. The 3 negatives were then edited in sync
using a Moviola machine and then step printed by a 
dye seperation technique to produce the color print.
It was a very costly process costing about 3.5 to
5 times more for prints alone. Production costs were
also much higher due to lighting, set design and over
head costs such as camera rental, film stock costs
and of course Natalie Kalmus didn't work cheap.