dolly grip

In cinematography, the dolly grip is a dedicated technician trained to operate the camera dolly. This technician places, levels, and moves the dolly track, then pushes and pulls the dolly and usually a camera operator and camera assistant as riders. If the dolly has a moveable vertical axis, such as a hydraulic arm, then the dolly grip also operates the "boom". If both axes are used simultaneously, this type of dolly shot is known as a compound move. A dolly grip must work closely with the camera crew to perfect these complex movements (cinematic techniques) during rehearsals. Focusing the lens is critical to capturing a sharp image, so a dolly grip must hit their marks in concert with a camera assistant who pulls focus. It is a skill that experience can hone to a point, but the best dolly...