Servicing projection equipment (1932)

Page scan 00072 from Servicing projection equipment

Record Details:

Title:
Servicing projection equipment
Date:
1932
Publisher:
New York : Mancall Publishing Corp.
Volume:
Servicing projection equipment
Leaf #:
00072
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
August 15, 2024
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56 LENSES and alcohol and polish them while they are still wet. Use only a clean, very soft, and lint-free cloth, (b) — The Canada Balsam used to cement the elements may have melted, in which case return the combination to the manufacturer for correction or replacement. 5. Rear Element Retaining Ring Binds When Element is Removed for Cleaning (a) — The ring may have been bent or damaged by careless contact with some part of the mechanism of the projector. Examine for the damage and delay the removal until ample time and care can be used. (b) — Perhaps too much pressure is being applied to the sides of the ring. If the ring is not damaged, pressing lightly with the fingers on the two sides is sufficient to make it yield and release.