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America's headquarters
for all theatre equipment
supplies
National
THEATRE SUPPLY COMPANY
VISITING FIREMEN — Accepting the invitation of Edward Lachman, president of Carbons, Inc., this group of technicians toured the XeTRON Division projection test laboratory at the State Theatre in Boonton, N. J., recently. There was considerable interest as they viewed and measured the light output of the unusual Xenon lamphouses pictured above.
COVER STORY:
from page 11
introduced Kodapak cartridge. This cartridge is simply dropped into the
it
WHY WASTE CARBONS?
Use The "Master Saver Device
Reduce your projection carbon cost by adopting the MASTER CARBON SAVER (designed by a pioneer IATSE projectionist.) The only simple and accurate saver on the market with no springs, screws, nuts and bolts and requires no carbon grinding. Each carbon held by "Precision Taper" after stub is easily tapped into saver. There is a "MASTER" saver for every type of Suprex non-rotating or rotating arc lamp. Now being used by hundreds of theatres on STRONG, ASHCRAFT, PEERLESS, etc.; sizes 6-7-8-9-10-llmm, $3.50 each; 13.6mm, $4.50 each.
SOLD BY YOUR LOCAL SUPPLY DEALER
Manufactured by
MASTER SPECIALTY PRODUCTS
200 West 72nd St., New York 23, N. Y.
INTERNATIONAL PROJECTIONIST
Post Office Box 6174 Minneapolis 24, Minnesota
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Kodak Instamatic cameras, thus eliminating loading and unloading problems.
Those posing for their first picture taken with an Instamatic camera using a Kodapak cartridge are more than 5,000 poses behind Sue. She has been "snapped" that many times and more by photographers using this new film size as part of the program to test all films by actual use.
Some of these pictures were taken to test film flatness, which is now controlled by the Kodapak cartridge rather than the camera. Uniformly sharp images over the entire negative area are an indication that the film is flat in the cartridge.
Studies of the keeping qualities of film under a wide range of temperature and humidity conditions also involve our model. Half a roll of film may be exposed in photographing a particular scene. The undeveloped film, still in the camera, is then placed in a special room where the temperature and humidity reproduce the hottest and most humid of summer days. Still other rolls are stored where the temperature may be below zero. Weeks or months later the film and camera are removed from the room, and the same scene is photographed. Then the entire roll of film is developed and the results compared.
The more technical film testing procedures, in which Sue does not participate, yield data in the form of charts, graphs, or tables. Data processing equipment is used to obtain quickly many of the required answers in numerical terms. iP
14
International Projectionist December, 1963