Abstract

Density-exposure time curves in the region of 11.0 to 14.0A are presented. A new linear relation between density and exposure time is shown which may prove useful to photographic workers. An empirical expression is obtained connecting density and exposure time.

© 1938 Optical Society of America

The Blackening of Photographic Plates by Long Wavelength X-Rays

F. R. Hirsh
J. Opt. Soc. Am. 25(8) 229-230 (1935)

Relations Between the Sensitometric and the Size-Frequency Characteristics of Photographic Emulsions*

Ludwik Silberstein and A. P. H. Trivelli
J. Opt. Soc. Am. 28(11) 441-459 (1938)

The Astigmatism of the Concave Grating as a Means of Calibrating Photographic Plates in Intensity Measurements*

Mary Ignace Bresch
J. Opt. Soc. Am. 28(12) 493-499 (1938)

Photographic Aspects of the Theory of Three-Color Reproduction*

David L. MacAdam
J. Opt. Soc. Am. 28(11) 399-418 (1938)

Sensitivity of Photographic Films to X-Rays at Low Temperatures

G. E. M. Jauncey and H. W. Richardson
J. Opt. Soc. Am. 24(5) 125-126 (1934)