A Practical Method and Photometer for Controlling Exposures in Photography

M. Lasky, B. Rubin

The need of determining accurately the brightness of subjects to be photographed so as to enable the cinematographer to determine the optimum exposure of the film in motion picture cameras by instrumental means rather than by visual estimate, is discussed at some length; and the errors inherent in the visual methods are shown to be very considerable. — An exposure meter known as the Graphometer has been designed for the purpose of enabling the cinematographer to determine the proper exposure of the film; it operates on the photoelectric cell principle and may be used with a standard camera. A brief discussion of the method of using the Graphometer is included.

Print ISSN
Published
1933-08
Content type
Original Research
DOI
10.5594/J02041