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Practical cinematography and its applications (1913)

Page scan 000114 from Practical cinematography and its applications

Record Details:

Title:
Practical cinematography and its applications
Date:
1913
Publisher:
Philadelphia, Lippincott
Volume:
Practical cinematography and its applications
Leaf #:
000114
Language:
English
Collection:
Books
Format:
Books
Contributor:
Gerstein - University of Toronto
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
14
Date Added:
July 19, 2022
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DEVELOPING THE FILM 77 frame or drum continuously, until the gelatine has hardened sufficiently. The process can be accelerated to a certain extent by revolving the drum or frame over a steam radiator, or some other form of heating which emits no smoke or flame, but the temperature of the air must not be raised too high or the gelatine coating will be injured. If the weather is fine and calm, the drying may be done upon a lawn in the open air, but in any event extreme care must be observed to prevent dust settling upon the gelatine while it is wet and soft, or irreparable injury will be inflicted. So it behoves the worker to keep his dark room and drying room free from dust. Drying should not be done in the dark room because there are small particles of chemical dust always floating about in such surroundings. If these should settle upon the emulsion they would play sad havoc with it. When the gelatine has hardened the film may be transferred direct from the drum to a spool by means of a winder. When the beginner has become expert he will be able to do this by hand, but it is never a wise practice since the coating is liable to become scratched. The spool-winder is inexpensive and does the work much more quickly, while the risk of damaging the film is eliminated. As has been mentioned, it is well to develop