This paper describes a transient-pressure recording camera with a full scale pressure range (by changing diaphragms) of 3 psi to 50,000 psi, and an accuracy of one-half per cent of full scale for any range. Its stability and hysteresis are such that a single static calibration suffices for years of dynamic measurements, and its frequency response varies from 10,000 cycle/sec to 100,000 cycle/sec, depending on the pressure range of the diaphragm used. The paper includes records of interesting applications.