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

Page scan 000377 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 #:
000377
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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360 J. L. McCov MR. McCov: Data on the spectral response are not available at the present moment. The instrument is commercially available in certain full scale values. The meter has an accuracy of probably plus or minus 10 per cent. MR. JONES: Do I understand that the cell as used gives an indication which is directly proportional to photographic intensity in the case of the panchromatic film-Mazda lamp combination and directly proportional to the intensity of north skylight? Do you propose to publish the data with the paper? MR. McCov : We have not proposed to do so, but I see no reason why it should not be published. MR. JONES: It would add to the value of the paper to have direct data on the sensitivity. MR. McCov: This device is very new. We have just gotten it off the "griddle." MR. PALMER: (Communicated.) We have found this instrument very useful around the studio for quick tests. Recently we had submitted to us several reflectors for which great claims were made as to their efficiency. We took readings with this photometer and determined their relative value immediately. We have also used it in checking the relative amount of light in various parts of a set. We are interested in relative values. We can take a light measurement with this instrument today and if we have to retake the same scene several weeks later, we can use the same light value. I believe this instrument is of great importance to the industry and new uses will be found for it from time to time.