Handbook for motion picture and stereopticon operators (1908)

Record Details:

Title:
Handbook for motion picture and stereopticon operators
Date:
1908
Publisher:
Washington, D.C. : The Knega Company, Inc.
Volume:
Handbook for motion picture and stereopticon operators
Leaf #:
00036
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Niles Essanay Silent Film Museum
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
November 16, 2023
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30 Motion Picture Double-Spool Method. Another device for developing these long lengths of film consists of a frame supporting two flanged spools above a long narrow tray. One end of the film is attached to one of the spools, upon which it is wound, and then passed, gelatine side down, through the fluid, being held therein by small rollers at each end of the tray and the other end of the film fastened to the other spool. The film after saturation is wound from one spool to the other through the solution again and again until full detail and proper density is secured, which can be determined by picking up the slack of the film and examining it before a conveniently-located non-actinic light. The trays are readily removed, without disturbing the spools holding the film, and the washing, fixing, hardening, soaking, etc., can therefore be quickly and conveniently done. Test Strips. In determining the development nothing is better than developing small test strips, timing and treating the development of the full-length strip to correspond with the test strip. Generally, the development should be continued until the face of the film is more or less shadowed over and the image well silhouetted on the back. The developing frame is then lifted out and set in the washing water for two or three minutes, and then put