The movie camera is a type of photographic camera which takes a rapid sequence of photographs on strips of film. The video camera has largely replaced it for private use, but for professional purposes, movie cameras are used and produced today, especially for the production of full-feature movies. In contrast to a still camera, which captures a single snapshot at a time, the movie camera takes a series of images; "frame". This is accomplished through an intermittent mechanism. The frames are later played back in a movie projector at a specific speed, called the frame rate(number of frames per second). While viewing, a person's eyes and brain merge the separate pictures together to create the illusion of motion.[1]
A spring-wound Bolex 16 mm camera
The Ciné Kodak Special II - 16mm movie camera (1948)