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

Page scan 00063 from Journal of the Society of Motion Picture Engineers

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 #:
00063
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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60 HOLM AND KAYLOR July As the orthochromatic film unwinds, it thus moves into the required emulsion-to-emulsion superimposed relationship with the panchromatic film, with the orthochromatic film nearest the lens (Fig. 1). The films now travel together down into the camera. After exposure the films travel up out of the camera into the lower section of the magazine. Here the orthochromatic film is rewound onto the "ortho" take-up spool, while the panchromatic film continues up into the upper section of the magazine where it, in turn, is rewound onto the "pan" take-up spool. Fig. 2 It can easily be visualized that such an over-and-under magazine of 1000-foot capacity would be an extremely ungainly and inconvenient camera assembly, having a high center of gravity. This, in turn, necessitates the use of cumbersome, top-heavy blimps. An adapter has been developed which permits the use of 1000-foot rolls of negative picture film in a side-by-side, rather than an over-andunder position. Two standard 1000-foot capacity, 35-mm magazines, or one double width (70-mm) magazine of 1000-foot capacity, can be mounted on top of the adapter to hold two 1000-foot rolls of film. The 70-mm magazine is used here in describing the operation of the adapter. The orthochromatic film (0) and the panchromatic film (P) emerge