Journal of the Society of Motion Picture Engineers (1930-1949)

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1950 FLASHLIGHTING EQUIPMENT 301 Fig. 1. 1-10-Kw pulse-type compact-source lamp. single high-speed still photographs, it is not suitable for cinephotography.6 None of the above methods meets all the requirements of the highspeed cinephotographer. The development of the discharge lamp has made possible a new means of obtaining a sufficiently high light output by flashing the lamp at a high overload, and special equipment has been designed to utilize this principle. Certain technical problems necessitate ultra-high-speed photography at speeds far higher than 3000 frames/sec. Special cameras