In photography the fidelity of the image is often degraded due to the random graininess associated with photographic emulsions. A study was performed to obtain objective and subjective data on the effects of granularity and graininess as a function of the number of spatially superpositioned images. A target was designed and built.* Individual negatives were made utilizing copy equipment with a vacuum back to ensure precise registration during exposure. These individual negatives were then imaged onto 16mm film utilizing standard motion picture equipment and a vacuum platen which was designed and built to ensure precise registration of individual negatives during the motion picture exposure. This study showed a significant enhancement of Images brought about by a technique which might be made practical on a routine basis.
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School of Photographic Arts and Sciences (CIAS)
Katz, Jerome and Umbdenstock, Roger, "A Study of the Effects on Sigma D and Resolved Lines as a Function of Spatial Multi-Superposition of Images" (1965). Thesis. Rochester Institute of Technology. Accessed from
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