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Report of High-Speed Photography Committee*
THE HIGH-SPEED PHOTOGRAPHY Committee was formed January, 1948, at the Bell Telephone Laboratories. At the first meeting of the committee the organization was set up with Harold E. Edgerton as Vice-Chairman and Arthur Neyhart as Secretary of the Committee. Various subcommittees were formed. As time has gone on, the work of some of these subcommittees has been somewhat altered from the original view.
The Lighting Committee has prepared a report in the form of a paper by Ralph Farnham on incandescent lights used in High-Speed Photography. The Lighting Committee sponsored the development of a lamp which was capable of taking pictures at rates up to 10,000 pictures per second at stops as low as//5.6, with a rotating-prism-type camera. Slower operating speeds mean further stopping down which is of great advantage. The Lighting Committee has also recommended the development of an exposure meter and that development is being reported upon at the second symposium. The Lighting Committee is going to undertake the study of improvements in timing system marker lamps.
The Papers Subcommittee has presented two symposia covering fundamentals, design of flashing light, rot ating-prism lens, and mirror cameras as well as studies in lighting and applications of high-speed photography by the industry. A third symposium was held at the October, 1949, meeting in Hollywood.
The Committee on Methods of Evaluation has prepared a report in the form of a paper on the Methods of Analyzing High-Speed Motion Pictures. Further investigations are being conducted by the Committee in improved methods of the evaluation of data.
The Subcommittee on Industrial Requirements has sent a questionnaire to the field, both military and industrial users, requesting information as to how they apply High-Speed Photography and what techniques they use. Reports from this questionnaire have come in and a report of the findings of this Committee was made at the Fall meeting.
* Presented April 6, 1949, at the SMPE Convention in New York. 602 NOVEMBER, 1949 JOURNAL OF THE SMPE VOLUME 53