Kodak: A Nostalgic Slide Rule/Chart

摘要

With the Kodak Company feeling the economies of the times, I was fondly reminded of Kodak's most helpful slide charts of my earlier days of photo taking. As one can tell from the charts in Figures 1 and 2, Kodak used logarithmic scales to assist the camera user to set the f-stop lens opening of his or her camera, in conjunction with the sunlight conditions. By my definition, that makes these colorful and wonderfully handy charts, a slide rule as well