The Densitometry of Modern Reversible Color Film

Monroe H. Sweet

Sensitometric procedures for modern multilayer reversible color films are much more exacting than those for black-and-white films. The tolerances for exposing and processing these materials are smaller and the analysis of the results is more difficult. — The problem of evaluating the processed sensitometric strips in terms of the color densities of each step has been facilitated by the construction of a specialized form of a direct-reading densitometer. An electron multiplier phototube, coupled to the grid of a logarithmically responsive triode, furnished the extreme sensitivity necessary to read high color densities with satisfactory spectral purity.

Print ISSN
Published
1945-06
Content type
Original Research
DOI
10.5594/J14238