The FizCam 3000 is a Fizeau interferometer developed by 4D Technology Corp. for measurement of meter-class optics and general optical elements. It uses dynamic interferometry to acquire all measurement data in <1 ms and, because it is insensitive to vibration and air turbulence, can be used in harsh environments without additional isolation. The turnkey instrument features an on-axis design and includes the interferometer, 4Sight wavefront analysis software and a high-speed computer system. Features include 4× motorized optical zoom imaging and remote control of focus and zoom. The software provides 2- and 3-D analysis and visualization tools, and filtering, masking, database and import/export functions.