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 #:
000448
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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April, 1930] NEW SIXTEEN MIUJMETER CAMERA 431 The aperture corresponding to a 1 in. lens, which is cut into the drum in a position diametrically opposite to the first, does not, as shown in the picture, intercept any of the rays of light which are limited by the larger aperture. It is quite obvious that by reversing the position of these two apertures so that the 1 in. aperture is in the correct viewing position, the greater 20 mm. aperture could not possibly interfere with its G B C FIG. 6. The mechanism of the Filmo 70-D camera with driving spring and middle plate removed. field of view. The same condition is fulfilled for all of the remaining four apertures. The objective lens can be easily replaced with one of lesser power, thereby permitting the use of photographic lenses of other focal lengths. The change of the objective lens would demand the use of a different eye-piece than the standard with which the finder is equipped. If we remove the camera mechanism from its casing, we will be in a position to see what we would call the "heart" of the apparatus, which is shown in Fig. 5. At A, are shown the shutter and cam driving gear; at B, the film back plate, which is of hardened and highly polished stainless steel; at C, two of the four film guard spindles; at E, the main driving spring and hub, which we may mention in passing is kept free from