Strictly speaking, a vieographer is a person who works in the video medium — recording moving images and sound on tape, disk, other electro-mechanical device, broadcasting live, or even on actual celluloid film in some cases. On a set, he or she is usually responsible for the camera, sound, and lighting. As part of a typical field production crew, videographers usually work underneath a director. However, for smaller productions (e.g. corporate and event videos), a video videographer often works alone or as part of a two or three person team of camera operators and lighting and sound technicians.