Regular video camera shoots 25 ~ 30 frames in a second. High speed cameras shoot more than that, from 60 frames to over 1,000,000 frames per second (fps), then play back at the regular (25 ~ 30 fps) frame rate. It records the phenomena which are lost between the frames of regular video cameras, and It enables observation of high speed phenomenon and events occurring in a fraction of a second. In other words, the high speed camera is a high sampling rate area optical sensor and recording system.