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 #:
000301
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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294 C. E. K. MEES [J. S. M. P. E. on the other hand, the density of the deposit is measured by completely diffuse illumination (as by placing opal glass in contact with the density) and the total light transmitted is effective (as in contact printing), then where D# is the density measured by diffuse illumination, I# is the incident diffuse illumination, and I\\ is the total intensity of the light transmitted. D\\ Callier2 introduced this terminology, and the ratio -~ is known FIG. 8. Graphic solution of tone reproduction. as the Callier coefficient, Q. For motion picture positive film, Q has a value of approximately 1.4. In order that the reproduction shall be exact for the straight-line portion of the curve, and not merely proportional, the condition to be fulfilled is Tneg. X Tpos. = 1 provided that the densities in all cases are measured in the same way. In motion picture photography, however, 7neg> is measured by diffuse illumination since the negative is used for contact printing, but the 7 of the positive effective in projection is increased because the posi