References
- The Photographic Researches of Ferdinand Hurter and Vera C. Driffield, (Royal Photographic Society Memorial Volume, edited by W. B. Ferguson, 1920).
- A.S.A. PH.2.5-1954, Photographic Speed and Exposure Index.
- B.S. 1380: 1947. Speed and Exposure Index of Photographic Negative Material.
- L. A. Jones, The Evaluation of Negative Film Speeds in terms or Print Quality. J. Franklin Inst. Amer., Vol. 87a (Aug. 1947).
- L. A. Jones, and C. A. Nelson, A Study of Sensitometric Criteria of Negative Film Speeds. J. Opt. Soc. Amer., Vol. 30 (Mar. 1940). Also Phot. J., Vol. 80 (April 1940).
- L. A. Jones and H. R. Condit. The Brightness Scale of Exterior Scenes and the Computation Of Photographic Exposure. J. Opt. Soc. Amer., Vol. 31 (Nov. 1941).
- DIN 4512: 1934, German Standard Speed-Marking for Negative Materials. (Latest published draft revision Jan. 1957.)
- J. F. Dunn, Exposure Meters and Practical Exposure Control, Fountain Press (1952), p. 52.
- Ibid. 8, but pp. 54 and 55.
- British Journal Photographic Almanac from 1953 Edition; p. 401 in 1957).
- Ibid. 8, p. 54.
- L. A. Jones, Recent Developments in the Theory and Practice of Tone Reproduction. Phot. J., Vol. 89B (Nov.-Dec. 1949).
- Ibid. 8, but pp. 42 and 43.
- Ibid. 1, pp. 41-47.
- Ibid. 19 and 20.
- Ibid. 8, but pp. 70-73.
- A.S.A. Z38.2.2 :1942, Photographic Exposure Computer. (Ibid. 24 for latest edition).
- B.S. 935 : 1948, Photographic Exposure Tables. (Ibid. 23 for latest edition).
- L. A. Jones and H. R. Condit, Sunlight and Skylight as Determinants of Photographic Exposure. J. Opt. Soc. Amer., Part I, Vol. 38 (Feb. 1948).
- Ibid. 19, but Part II, Vol. 39 (Feb. 1949).
- Ibid. 1, p. 9 (and many other exposure tables and calculators until 1942 and later).
- Ibid. 19.
- B.S. 935 : 1957, Photographic Exposure Tables.
- A.S.A. PH2.7 : 1955, Photographic Exposure Computor.
- Ibid. 23 and 24 compared with 18 and 17 respectively.
- Ibid. 8, bul Chapters IV and V.
- Ibid. 8. but Chapter IV (a).
- Exposure Value system-first introduced in 1955 by Friedrich Deckel of Munich on their Compur shutters.
- A. J. Dalladay, Solving the Abnormal Exposure Problem. B. J. Almanac (1937), p. 127.
- J. S. Dow and V. H. Mackinney, Surface Brightness, its Measurement and its Applications to Photography. Phot. J., Vol. 51 (Apr. 1911), p. 445.
- R. G. Hopkinson, The Photographic Representation of Street Lighting Installations. Phot. J., Vol. 76-New Series 60-(June 1936), p. 323. Also Trans. Ilium. Eng. Soc, Vol. 1 (Feb. 1936), p. 19.
- J. F. Dunn, and G. S. Plant, A New Photometer for Camera and Enlarger, Phot. J., Vol. 85B (Nov.-Dec. 1945), p. 114.
- J. F. Dunn, and G. S. Plant, The Exposure Photometer and Modern Exposure Technique (Fourth Renwick Memorial Lecture). Phot. J., Vol. 88A (Nov. 1948), p. 230.
- J. F. Dunn, The Calibration of Selective Photometers for the Determination of Photographic Exposure. Phot. J., Vol. 89B (Mar.-Apr. 1949), p. 36.
- Ibid. 20, p. 97B.
- Ibid. 8, but Chapter V.
- P. C. Smethurst, The Standardization of Camera Exposures in Kinematography. British Kinematography, Vol. 1 (Dec. 1937), p. 20.
- Ibid. 8, but p. 165.
- Described in British Patent No. 732,914: Foreign patents pending.
- Covered by British Patent No. 776,545: Foreign patents pending.