Auxillary equipment

Track and dolly:

A camera dolly is a wheeled cart or similar device used in filmmaking and television production to create smooth horizontal camera movements. The camera is mounted to the dolly and the camera operator and focus puller or camera assistant usually ride on the dolly to push the dolly back and forth. The camera dolly is generally used to produce images which involve moving the camera toward or away from a subject while the camera is moving, a technique known as a "dolly shot."

An advantage of using a track and dolly is that the footage has a smooth and realistic appearance in comparison to a hand held zoom


A disadvantage of using a track and dolly is that there must be tracks for the dolly to run across which may not be possible to use on uneven surfaces.
Another disadvantage is that dolly cams can take much longer to set up, which may make using a hand held seem more appealing for time purposes .


Steadicam

Steadicam is a brand of camera stabilizer mount for motion picture cameras that mechanically isolates it from the operator's movement. It allows for a smooth shot, even when moving quickly over an uneven surface.
An advantage of the steady cam is that it is able to be operated on an uneven surface yet still produce smooth footage as if it were shot on an even surface.
Another advantage is that steadicams are portable since they are small enough to be held by hand .
A disadvantage of steadicam is that they must be held by a person at all times which may make filming for prolonged periods of time problematic.