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

Page scan 000218 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 #:
000218
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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CHARACTERISTICS OF SOUND FILM 201 Feb., 1930] I phonic noises ; and a slightly out-of -focus slit image on the film causes a depression in volume of the higher frequencies of as much as 10 to 15 decibels. 10 15 20 £5 PIAMETER OF IMAGE. IN mm — * fc * k FIG. 15. The upper curve shows the contraction of a 4.5 mm. image with the density of the photographic image. The lower curve shows the contraction of an image as a function of the diameter of the image. We have referred to certain other factors which might affect the structure of the photographic image, namely, growth of image with exposure, contraction of image, mutual action of adjacent images, and