Abstract

The resolution characteristics of typical panchromatic negative films have been studied with a camera using microscope objectives. The results of resolution measurements made with high and low contrast line targets and low contrast annulus targets, over a range of development times, are presented in this paper.

Measurements were also made of the speeds of these films on the resolving power criterion. These show that the resolving power speed increases linearly with the gamma. The ratio of the minimum exposure permissible on the fractional gradient criterion to the exposure based on the resolving power criterion varies with the brightness scale of the subject.

© 1956 Optical Society of America

Resolving Power of Photographic Emulsions

Glenn A. Fry
J. Opt. Soc. Am. 53(3) 368-374 (1963)

Studies in the Resolving Power of Photographic Emulsions. V.* The Effect of Reduction and Intensification†

Fred H. Perrin and J. H. Altman
J. Opt. Soc. Am. 42(7) 462-467 (1952)

Studies in the Resolving Power of Photographic Emulsions. III. The Effect of the Relative Aperture of the Camera Lens on the Measured Value*

Fred H. Perrin and J. H. Altman
J. Opt. Soc. Am. 41(12) 1038-1047 (1951)

Studies in the Resolving Power of Photographic Emulsions. IV.* The Effect of Development Time and Developer Composition†

Fred H. Perrin and J. H. Altman
J. Opt. Soc. Am. 42(7) 455-461 (1952)

Studies in the Resolving Power of Photographic Emulsions. VI.* The Effect of the Type of Pattern and the Luminance Ratio in the Test Object†

Fred H. Perrin and J. H. Altman
J. Opt. Soc. Am. 43(9) 780-790 (1953)