Steadicam is broadly divided into "mechanical" and "electronic". The design principle of electronic steadicam is to use the flywheel rotary inertia to maintain the stability of the optical system. In very angular acceleration that is rapidly angular motion there will be 2-3 seconds unstable state. Do not try steadicam without special training. Otherwise, the waist will be injured. Currently Wondlan has been devoting itself to improving the shortcomings of the steadicam.