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 #:
00072
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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66 Motion Picture should also have a carbon adjustment in every direction. A lever movement of the lower carbon holder is a great convenience for quickly striking the arc, although some use a carbon and touch it between the two carbons of the lamp. In adjusting the machines, it will be found more practical to first secure an approximate focus then a white light on the canvas, next sharp focus of all of the projecting lenses, and then proper registration on the canvas. Make final focus on a good focusing slide (made with sharply-defined lines and lettering) and then let the focus alone during the whole show. Use a piece of mica with sharply scratched pin lines on one side for focusing the motion-picture lens, with the film window open. Everything should be tested before the doors of the theatre open so that any little troubles may be corrected without loss of confidence by the audience in your ability and their own safety. Oxy-Hydro Light. When oxy-hydrogen light is used in the stereopticon, always turn on the hydrogen first and light it, next turn on the oxygen, slowly, and then manipulate the valves until you get clear white light on the canvas. The lime should be turned as frequently as necessary to prevent deep pitting. In America the black tank is hydrogen,