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Astronomical hypersensitization techniques applied to photomicrography: Kodak Technical Pan Film 2415
Author(s) -
Smith Alex G.
Publication year - 1986
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1986.tb04671.x
Subject(s) - optics , high resolution , materials science , physics , remote sensing , geology
SUMMARY Kodak Technical Pan Film 2415 is a valuable recording medium because of its unusually fine grain and high resolution. Hypersensitization techniques developed by astronomers can increase its normally low speed several‐fold in the range of exposures commonly employed in microscopy. The speed gains are even larger for very long exposures such as those encountered in fluorescence work. Troublesome effects from reciprocity failure are virtually eliminated. When active development is added to hypersensitization, well‐exposed negatives can be obtained at ISO indexes as high as 1600. As in astronomy, the same general techniques can be applied to a wide variety of emulsions.