Industrial photographers use photographs or videotapes for publicity or studying engineering projects. They also may use them as records of equipment development. This photography is often done on location. Scientific photographers do illustrations for scientific publications. They usually specialize in a field, such as biology or medicine.
Biomedical photographers record medical procedures, such as surgery.
Photojournalists take pictures of newsworthy events, people, and places. They usually work for newspapers, magazines, or television stations. Some are salaried staff. Independent photojournalists are known as free-lance photographers. Camera operators use video cameras to film motion pictures, commercials, and films.