A comparison has been made of atmospheric attenuation of brightness contrast data obtained by photographic and by photoelectric processes. The comparison involved the use of a photoelectric telephotometer and a photographic telephotometer of practically the same optical and mechanical design. Atmospheric attenuation of brightness contrast data was obtained for four practically monochromatic regions of the visible spectrum using plane objects subtending the same angle with respect to the point of observation and covering a range of approximately eight miles. The data obtained using the two types of equipment were found to be in close agreement.
HOWARD S. COLEMAN and HAROLD E. ROSENBERGER, "A Comparison of Photographic and Photoelectric Measurements of Atmospheric Attenuation of Brightness Contrast," J. Opt. Soc. Am. 39, 990-990 (1949)
J. Opt. Soc. Am.
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