Methods of Appraising Photographic Systems: Part II—Manipulation and Significance of the Sine-Wave Response Function

Fred H. Perrin

The concept of sine-wave response is explained, and it is shown how this characteristic describes the behavior of an optical or photographic system whereas a single parameter such as resolving power or passband frequency may be inadequate. The simple experimental methods of determining sine-wave response are described, and an extensive list is given of the various methods that have appeared in the literature. The usefulness of the sine-wave response is exemplified by showing how spurious resolution may arise and how successive steps in a complete photographic system can be cascaded to give the overall response of the system. The method of computing sine-wave response from the spread function is described in detail.

Print ISSN
Published
1960-04
Content type
Original Research
DOI
10.5594/J14395