Journal of the Society of Motion Picture Engineers (1930-1949)

Record Details:

Title:
Journal of the Society of Motion Picture Engineers
Date:
1930-1949
Publisher:
New York, N.Y. : The Society
Volume:
Journal of the Society of Motion Picture Engineers
Leaf #:
00010
Language:
English
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Prelinger Library
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
The Journal of the Society of Motion Picture Engineers (SMPE)Êdocuments the technological progress of the film industry, highlighting technical developments in production and exhibition. Of special interest are articles about special effects, theater practices, lighting, and the introduction of the 16mm format. Initially titled "Transactions of the Journal of the Society of Motion Picture Engineers."Digitized by the Prelinger Library and the Library of Congress Motion Picture, Broadcasting and Recorded Sound Division.
Date Added:
July 19, 2022
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1949 COLOR PROCESSING CONTROL control test machine except replenisher solutions are tested with two thirds the developing time of their basic solutions. It is desirable, although not absolutely necessary, that the solution control test machine and the processing machine turn out closely matched results. Often differences in agitation will make this difficult. The procedure for chemically adjusting color balance described in the section on machine adjustments would not be applicable in this case because it is necessary that the solution control machine operate to test the exact machine formulas. Fig. 3 2. Photographic Tests of Machine Operation The basic purpose behind all preliminary testing is, of course, to control the actual developing machine. To this end the greatest reliance is placed on photographic controls because these indicate directly the results the machine is producing. Test strips are run through at 15 to 30-minute intervals. As the strips come off the machine, they are quickly compared visually with the precedingstrips and the color densities of three representative toe, middletone, and shoulder steps read and plotted as shown in Fig. 4. The control chart that gradually accumulates as a result of plotting these