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Abstract
A recording microdensitometer similar to that described by Altman and Stultz (Microdensitometer for Photographic Research, Altman, J. H., and Stultz, K. F., Review of Scientific Instruments 27, 1033–1036, Dec. I956) has been made for research on image structure in photographic materials. The scanning aperture is a slit of width adjustable down to about lμ and length up to about 700μ. Response is linear with densities up to about 3-5 at this aperture. The record is made on rectangular co-ordinate chart-paper.
Notes
* Communication No, 2029H from the Kodak Research Laboratories.