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

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Proposed American Standard Aperture Calibration of Motion Picture Lenses PH22.90 p. 10 of 10 pp. nominal fee. See Jour. SMPTE, vol. 56, pp. 691-692, June 1951.) 10. E. Berlant, "A system of lens stop calibration by transmission," Jour. SMPE, vol. 46, pp. 17-25, Jan. 1946. 11. C. R. Daily, "A lens calibrating system," Jour. SMPE, vol. 46, pp. 343-356, May 1946. 12. A. E. Murray, "The photometric calibration of lens apertures," Jour. SMPE, vol. 47, pp. 142-151, Aug. 1946. 13. I. C. Gardner, "Compensation of the aperture ratio markings of a photographic lens for absorption, reflection, and vignetting losses," Jour. SMPE, vol. 49, pp. 96-110, Aug. 1947; also J. Res. Nat. Bur. Stand., vol. 38, pp. 643-650, June 1947 (Research Paper RP 1803). 14. M. G. Townsley, "An instrument for photometric calibration of lens iris scales," Jour. SMPE, vol. 49, pp. 111-122, Aug. 1947. 15. F. G. Back, "A simplified method for the precision calibration of effective i stops," Jour. SMPE, vol. 49, pp. 122-130, Aug. 1947. 16. F. E. Washer. "Errors in calibrations of the f numbers," Jour. SMPE, vol. 51, pp. 242-260, Sept. 1948; also J. Res. Nat. Bur. Stand., vol. 41, pp. 301313, Oct. 1948 (Research Paper RP 1927). 17. A. E. Murray, "Diffuse and Collimated T-Numbers," Jour. SMPTE, vol. 56, pp. 79-85, Jan. 1951. NOT APPROVED 348 October 1952 Journal of the SMPTE Vol. 59