Continuous Duty Lighting Calculations And Techniques For High Speed Photography
Thomas L. Pincu · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1983
An understanding of basic lighting technology, calculations, and applications is necessary to arrive at appropriate intensity levels and coverages in high speed photography. These factors coupled with an understanding of film emulsions and the effects of lens apertures on exposure and lighting requirements result in effective lighting levels for high speed photographic data acquisition as well as cost effectiveness in budgetary controls. Techniques for reduction of infra-red energy on heat sensitive subjects are discussed as well as exposure increases mandated by the use of tubes or extension bellows. High intensity D.C. "Flicker-less" light sources and their application are discussed. These sources are capable of generating incident lighting intensities in excess of 20,000 foot candles at 50'.