References
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- C. N. Nelson. Safety factors in Camera Exposure. Phot. Sci. Eng., Vol. 4/1 Jan. Feb. I960.
- U.S.A. Standard, General purpose photographic exposure meters. (Photoelectric type). PI 12.12-1961.
- British Standard BS. 1380, Speed of sensitized photographic materials. Part I, Negative monochrome material for use in daylight. Part 2, Reversal colour film for still and cine photography.
- U.S.A. Standards, PH2.5-I960. Speed of photographic negative materials. (Monochrome, continuous tone). PH2.21 1961. Speed of reversal colour lilms for still photography.
- German Standard DIN.4512. Photographische Sensitometrie, October 1961 and September 1963.
- British Standard. BS. 1592-1958. Camera Shutters.
- Allen Stimson. Measuring and judging photographic exposure of colour film. Phot. Sci. A Eng., Vol. 4/4. I960.
- W. Woodbury. Two psychophysical methods for evaluating quality of projection colour slides. Phot. Sci. Eng., Vol. 4/2. I960.
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- U.S.A. Standard. PI 12 7 1966. Photographic Exposure Guide.
- J. F. Scudder, C. N. Nelson and A. Stimson. Re-evaluation of factors alfecting manual or automatic control of camera exposure. J. SMPTE., Vol. 77. Jan. 1968.
- Allen Stimson. The G-numbcr#8212;a photometric lens-aperture designator. J. SMPTE, Vol. 74. Feb. 1965.