A Wide Angle 35-MM High-Speed Motion Picture Camera<!-- * -->

High-speed motion picture photography has played a very important part in the development of machines and working devices by providing a convenient means for analyzing the behavior of moving parts. A wide angle high-speed motion picture camera has recently been designed. The camera takes pictures at rates up to 3500 per sec and has a 40-degree field of view. This field of view allows the camera to photograph a 71-ft field when 100 ft away. The problems of design and applications of the camera are discussed.