Principles of cinematography : a handbook of motion picture technology (1953)

Page scan 000153 from Principles of cinematography : a handbook of motion picture technology

Record Details:

Title:
Principles of cinematography : a handbook of motion picture technology
Date:
1953
Publisher:
London : Fountain Press
Volume:
Principles of cinematography : a handbook of motion picture technology
Leaf #:
000153
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 15, 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.

PRINTING MOTION PICTURE FILM 149 on an optical step printer is by using a mask which is operated by a train of gears and caused to pass across the printer aperture in a manner similar to the opaque areas in the travelling matt. The advantages of a machine which contains the necessary mechanism with which to drive such a mask are that the considerable trouble caused when preparing the travelling matts is eliminated and the speed and design of the transitions may be regulated at will. The moment at which the mask commences to travel across the printing aperture is usually controlled by one of two methods. Firstly, by notches punched in the edge of the negative film, and which cause an electrical circuit to engage the mask actuating gear train or, secondly, by a parchment card very similar to the roll used in a player-piano running at a very reduced speed relative to the film and containing slots into which a spring loaded contactor may fall. This contactor then completes an electrical circuit which again engages the mask operating gears. Fig. 64. — A rotary contact printer. Rotary Contact Printers The remaining general types of printing machines are all classified as continuous, or rotary printers. The first of these is the contact printer seen in Figure 64. In this machine both the positive and