An experiment was conducted to determine quality criteria for continuous-tone diazo film reproductions. The rank-order method was used to acquire judgement data from a group of experienced photographic scientists evaluating diazo reproductions varying in exposure level and tone reproduction contrast. Analysis of the data resulted in the conclusion that a high degree of agreement does exist between the judges, the quality of a diazo copy depends significantly on the exposure level and the silver positive input, and maximum density and tone reproduction contrast could be possible quality criteria for diazo reproductions.
Library of Congress Subject Headings
Images, Photographic; Diazo microfilm
Kosta, John A., "Psychometric evaluation of diazo reproductions" (1967). Thesis. Rochester Institute of Technology. Accessed from
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