Abstract

In this investigation the graininess and speed of the more popular commercial films developed in typical fine-grain developers were determined quantitatively. It was found that the differences in graininess produced by the developers were small in comparison with the inherent differences among the various films. Certain fine-grain developers were effective in reducing the graininess of fast, coarse-grain emulsions, but only at the sacrifice of effective emulsion speed. These developers, however, were only slightly effective in reducing the graininess of slow, fine-grain emulsions, small differences in density or contrast completely obscuring the effects of the developers.

© 1941 Optical Society of America

An Instrument for the Measurement of the Graininess of Photographic Materials *†

E. M. Lowry
J. Opt. Soc. Am. 26(1) 65-72 (1936)

The Relationship Between the Granularity and Graininess of Developed Photographic Materials*

Loyd A. Jones and George C. Higgins
J. Opt. Soc. Am. 35(7) 435-457 (1945)

Graininess of Photographic Materials in Objective Absolute Measure

A. van Kreveld and J. C. Scheffer
J. Opt. Soc. Am. 27(3) 100-109 (1937)

The Distribution of the Latent Image in the Silver Bromide Grain*

G. Kornfeld
J. Opt. Soc. Am. 31(9) 598-601 (1941)

Application of the Electron Microscope to the Study of Photographic Phenomena*

C. E. Hall and A. L. Shoen
J. Opt. Soc. Am. 31(4) 281-285 (1941)