Abstract

An empirical method for estimation of probable resolving power of a lens affected by longitudinal chromatic aberration is discussed. Values of the resolving power at a series of values of the f-number are calculated for selected values of longitudinal chromatic aberration, dc. The variation of resolving power with f-number is presented graphically for selected values of longitudinal chromatic aberration and relative contrast. Indication is given of a critical aperture for which the resolving power is a maximum for a given set of values of chromatic aberration and relative contrast. The variation of relative contrast with resolving power is presented graphically for several values of the f-number for a lens having selected amounts of longitudinal chromatic aberration. A method for predicting the resolving power of a given lens–film combination is also indicated.

© 1967 Optical Society of America

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F. E. Washer and F. W. Rosberry
J. Opt. Soc. Am. 41(9) 597-600 (1951)

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