Society of Motion Picture Engineers : incorporation and by-laws (1927)

Page scan 000759 from Society of Motion Picture Engineers : incorporation and by-laws

Record Details:

Title:
Society of Motion Picture Engineers : incorporation and by-laws
Date:
1927
Publisher:
New York : Society of Motion Picture Engineers
Volume:
Transactions of the Society of Motion Picture Engineers (1927)
Leaf #:
000759
Language:
English
Subjects:
motion pictures, Cinematography -- Periodicals
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Library of Congress, MBRS, Moving Image Section
Sponsor:
Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division
Coordinator:
Media History Digital Library
Description:
Preceeded by an unnumbered issue published in 1916 called: Incorporation and by-laws
Date Added:
September 12, 2024
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A Sendiometer Tablet — Ives and Crahtree 743 made on the printer will serve as a guide in assembling the required tablet. A definite technique must be followed in order to obtain the required development, as will be described below. o o 1 > 1 o 1 ¥ \ F i A, B, C, D, As B^ Cg Dg m. SHORT DEVELOPMENT CORRECT DEVELOPMENT LONG DEVELOPMENT o o A B C D TABLET Fig. 2. Experimental A series of flash exposures should be made on positive film about two feet of film being run at each exposure step on the printer. During this procedure it is necessary to maintain the line voltage constant. All of the strips should be developed simultaneously. The time of development which gives the relationship stated above with Eastman motion picture positive film is 33^ minutes at 65°F. in the Eastman MQ developer (Formula D-16) diluted with an equal volume of water. The rack should be moved continuously throughout development. This can be insured by causing the top of the rack to describe a rectangular path under the surface of the developer and by lifting the rack one-half way out of the tank once each minute after the first minute of development.^ The set of flash exposures resulting will serve as a rough measure of the relative exposure given by the printer steps, and a casual examination will reveal any gross irregularities, if not already noticed,