Abstract

An attempt was made to evaluate in terms of recognition the performance of several lenses of equal focal length and aperture, but of different design. Some lenses required a detailed study because of the presence of two resolution maxima.

Photographic measurements of the contrast rendition were made by means of the National Bureau of Standards’ continuous-tone test chart. For one lens the measurements were repeated photoelectrically. With the same lens recognition tests were made using pictures of natural objects as targets. They did not reveal a clear relationship with either resolution or contrast rendition.

© 1956 Optical Society of America

Resolving Power of Photographic Emulsions

P. Hariharan
J. Opt. Soc. Am. 46(5) 315-323 (1956)

Detection and Recognition of Photographic Detail. I. Empirical Data Applicable to the Prediction of Performance of Diffraction Limited Systems*

Duncan E. Macdonald and John T. Watson
J. Opt. Soc. Am. 46(9) 715-720 (1956)

Relationship between Definition and Resolving Power with Test Objects Differing in Contrast*

G. C. Higgins, R. N. Wolfe, and R. L. Lamberts
J. Opt. Soc. Am. 46(9) 752-754 (1956)

Recognition of Forms Against a Complex Background*

Robert M. Boynton and William R. Bush
J. Opt. Soc. Am. 46(9) 758-764 (1956)

Influence of Primary Coma and Astigmatism upon the Low-Contrast Photographic Resolving Power of a Camera Lens

N. Murcott
J. Opt. Soc. Am. 46(7) 552-554 (1956)