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Article
February 28, 1925

BERLIN

JAMA. 1925;84(9):691-692. doi:10.1001/jama.1925.02660350055027

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Abstract

Colored Films of Surgical Operations  At the recent meeting of the Berlin Medical Association, Dr. von Schubert, of the Charité Women's Hospital, exhibited a number of operative films in natural colors, produced by the Szczepanik method. The method is based on the fact that of groups of eighteen objectives three are brought into action at the same time, and blue, red and green filters are employed. In the projection apparatus, the film is stationary while the light is made to revolve about the film. By this method, the light becomes six times stronger than in other procedures of so-called additive three-color cinematography. To prevent skin burns resulting from the great heat, the light is conducted through water, and through the use of mirrors a light intensity of 50,000 candle-power is produced. Several operations on the uterus were exhibited; also a delivery which, owing to the natural colors of the objects

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