International projectionist (Jan-Dec 1956)

Record Details:

Title:
International projectionist
Date:
Jan-Dec 1956
Publisher:
New York : International Projectionist Publishing Co., Inc.
Volume:
International projectionist (Jan-Dec 1956)
Leaf #:
00053
Language:
English
Collection:
Technical Journals
Format:
Books
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:
International Projectionist presented the technology of cinema sound and image projection while addressing the issues and concerns of union projectionists. -- David Pierce, 2013
Date Added:
November 16, 2023
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W ... Ill Wl1*3Wf Mtili nave posit*0?1"* B,Vf?J»lWKC-' ■'■■■';;:-t. : ■ . * you *«" ^ fit,* all .keir **■*££ ^-pr0,,en impartial p ^ — mi A variation in the negative carbon burning rate of as little as 6 %to 8% can in 20 minutes change the position of the positive crater in relation to the lamphouse optical system as much as Va". Less than 1/32" is the maximum error that can be tolerated without a loss of illumination and change in color of the light on the screen to either blue or brown. The Strong Automatic Crater Positioning System controls the burning of both carbons, maintaining a steady light of constant color temperature— exactly the same for both lamps— so that changeovers need never be noticed. The new, more complicated projection techniques have greatly added to the demands on the projectionist. He now has even less time for careful attention to the arc. The Automatic Arc Crater Positioning System, which eliminates the need of hand feeding and correction of the carbon crater position, better enables him to render a good presentation. ..T/u World's jRNATIONAL PROJECTIONIST • FEBRUARY 1956