steadicam的英文解释。。急求。。拜托了、、

The term Steadicam has several senses:

1. In the loosest sense, it refers to a stabilizing mount for a motion-picture camera, which mechanically isolates the movement of the camera from that of the operator, providing a very smooth shot even when the operator is moving quickly over an uneven surface.

Purpose
For static shots, a motion picture camera is typically stabilised with a tripod, or one of a variety of mounting systems which place the camera firmly on the ground.

Traditionally, for moving (or "tracking") shots, a director has two basic choices. Typically, the camera is mounted on a dolly—a wheeled camera mount that rolls on tracks or levelled boards. This has the advantage of permitting smooth camera movement, but takes time to set up, and can be impractical in certain situations. The director must compose the shot's movement so as to prevent the tracks or boards from appearing on screen.

Alternatively, the dire