Design of a Stepped Diaphragm Intensity Scale Sensitometer for testing the photographic response of Graphic Arts materials is presented. The sensitometer utalizes a stepped area target and a cylindrical lens to produce a stepped illuminance distribution at the film plane. A computer aided study is used to find the optimum lamp positions with respect to the reflector.
Library of Congress Subject Headings
Photographic sensitometry; Photography--Equipment and supplies--Testing
Department, Program, or Center
School of Photographic Arts and Sciences (CIAS)
Schumann, G. W.
Meehan, Patrick, "Design of a Stepped Diaphragm Intensity Scale Sensitometer" (1977). Thesis. Rochester Institute of Technology. Accessed from
RIT – Main Campus