THE CONCEPT OF VARIABILITY

Photographers are by necessity experimenters. Although they are not thought of as scientists operating in a research atmosphere, they most certainly are experimenters: Every time an exposure is made, and the negative is processed, a genuine experiment has been made. There is no way the photographer...

THE NATURE OF LIGHT

Light is fundamental to photography. The function of photographic materials is to record patterns of light. The function of photographic equipment used for taking pictures is to produce light (lamps), to measure light (exposure meters and color-temperature meters), and to control light (lenses,...