New search

Richard T. Brundage

Department of Physics, Astronomy, and Engineering
St. Cloud State University
A Light on Physics: F-Number and Exposure Time

This case study presents students with the challenge of working together in teams to win a photography contest. Some team members believe in aperture priority: pictures should be taken with as large an f-number as possible. The other members advocate exposure time priority: pictures should be taken with as short an exposure time as possible. Each of these positions has its advantages and disadvantages, which the advocates need to research before coming to class, and then in class come to consensus as to a single pair of settings for f-number and exposure time to use in order to create the most artistic photograph. The case uses optics to illustrate methods and applications of science to non-science majors.