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 #:
00097
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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Mr. Lovick: The results are poorer than those obtained with a properly colorcompensated sound exposure. The filter pack that is used for printing pictures is still almost a neutral pack, as far as that 2900 K source is concerned. There are simply enough additional filters available so that you can remove some to adjust the color quality. Mr. Herrnfeld: What was the filter pack you mentioned? I mean approximately, is it minus the yellow? The reason I am asking is that I have made extensive tests on other products and I have found that if you get a good gray curve from your film, in other words that the three emulsions give you approximately the same gamma. that is where we had the best processing quality of sound films. Mr. Lovick: That isn't necessarily true. Each emulsion was designed for a particular dye, irrespective of the amount of halides necessary to get that dye. If you convert those halides to silver sulfide instead of the dye, the curve shapes are no longer similar to what they were for the dye deposits. There's no reason to believe that they'd be similar. The speeds, too, might be quite different. Suppose that you have to have one and one-half times more halides available for the yellow layer than for the other layers in order to get sufficient yellow dye density. When converted to silver sulfide, you would have that much additional contrast in that particular layer. 88 August 1952 Journal of the SMPTE Vol. 59