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โœฆ   LIBER   โœฆ

Photometric determination of camera exposures for motion picture work

โœ Scribed by Alan M. Gundelfinger; Jerome W. Stafford


Publisher
Elsevier Science
Year
1933
Tongue
English
Weight
700 KB
Volume
215
Category
Article
ISSN
0016-0032

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โœฆ Synopsis


A photometric method for the determination of camera exposures in motion picture work is described.

The relation of exposure, object brightness and lens stop number is derived, and the proportionality constant empirically determined for "Pan Astro" lenses of two-and three-inch focal length.

A nomographic chart of the exposure relation is given to simplify the determination of the lens stop number to be used for a given object brightness.

INTRODUCTION.


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