Start Over

Handbook for motion picture and stereopticon operators (1908)

Page scan 00033 from Handbook for motion picture and stereopticon operators

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 #:
00033
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
Date Added:
May 02, 2025
Something wrong or inaccurate about this page? Let us Know!

Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.

Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to mhdl@commarts.wisc.edu with your comments.




We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.

Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.

Operator's Handbook 27 DEVELOPMENT. Developing Machines. Having exposed the film in the camera, the next step is development. To develop this strip, carrying on its gelatine surface some 1600 latent images every 100 feet, is worthy the effort of the most patient photographer, for each picture must have the same density, remain without stain throughout, and must be handled so as not to be abraided in any part of its length. Drum Method. The method most in use consists in winding the film spirally while dry upon a large drum, the latter supported free to rotate in a semicylindrical tray into which the developing fluid is poured. These drums are usually 3 feet or more in diameter and 6 feet or more in length, and driven by a motor, although a crank may, of course, be used. A drum 2 feet in diameter and 2 feet long holds 100 feet of film laid close. Pin Cross-Arms. No developing device is, however, so suitable for travel (and many operators prefer it at home) as a pair of brass cross-bars having vertical pins