PI-74C: a hand-held photoinstrumentation computer
Donald H. Peterson · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1993
The PI-74C hand-held computer is loaded with 70 programs having 95 selection entries for instrumentation photographers and engineers concerned with high speed photography. The programs perform numerous calculations applicable for use with high speed cameras of the intermittent movement and the rotating prism designs as well as for continuous film-flow cameras for streak and synchro-ballistic work, high speed video, illumination, and for velocity analysis.