Cinematography

Cinematography is mainly to do with the camera and lighting departments, the person operating the camera is the cinematographer. 

Director of photography is the chief over the camera and lighting crews working on a film, and responsible for achieving artistic and technical decisions related to the image.

Camera operator is responsible for physically operating the camera and maintaining composition and camera angles throughout a given scene or shot. 

Focus puller is a member of a film crew’s camera department whose primary responsibility is to maintain image sharpness on whatever subject or action is being filmed.

Clapper loader typically has a very high responsibility level on any given set, because they are more or less the only person on set who directly and physically oversees the state of the undeveloped negative.

Lighting department (gaffer and sparks) the gaffer is the head of the Electrical Department, responsible for the design and execution of the electrical distribution and lighting plan for a production. Sometimes the Gaffer is credited as Chief Lighting Technician.

Grip department (riggers) grips are trained Lighting and Rigging Technicians. Their main responsibility is to work closely with the Electrical Department to put in the non-electrical components of lighting set-ups required for a shot, such as flags, overheads, and bounces. The Key Grip is the chief Grip on a set, and is the head of the Set Operations Department. The Key Grip works with the Director of Photography to help set up the set and to achieve correct lighting and blocking.