An investigation was conducted regarding the effects of varying supplementary exposure on High eSpeed Infrared Film. In addition, CPA was evaluated in comparison to Hypersensitization and Latensification. The results were that CPA is superadditive with respect to both density and exposure, the maximum effect being noted in the toe of the characteristic curve. Furthermore, Hypersensitization and Latensification , with dark intervals up to five seconds, displayed efficiency that was not significantly different from CPA. It was also determined that the spectral distribution of the imaging source does not affect the efficiency of CPA. Corroboration of C&C Research's speed increase claims was achieved.
Library of Congress Subject Headings
Photography--Films; Photographic sensitometry
Department, Program, or Center
School of Photographic Arts and Sciences (CIAS)
Feather, Mitchell D., "The effects of concurrent photon amplification utilizing an infrared latensification source" (1980). Thesis. Rochester Institute of Technology. Accessed from
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