16mm film has a single perforation for each frame, which comes out to 40 perforations per foot.
16 mm film
16 mm film is a popular, economical gauge of film. 16 mm is the width of the film. Other common film gauges include 8 mm and 35 mm. It is generally used for non-theatrical (e.g., industrial, educational) film making or for low budget motion pictures. RCA developed sync sound for 16 mm cameras in 1933.
Besides certain applications, like satellite observation, ethnographers from the 1950s on began to use 16 mm cameras for scientific work.
A film format is a technical definition of a set of standard characteristics regarding image capture on photographic film, for either stills or filmmaking. It can also apply to projected film, either slides or movies. The primary characteristic of a film format is its size and shape.
In the case of motion picture film, the format may also include audio parameters (though often not). Other characteristics usually include the film gauge, pulldown method, lens anamorphosis (or lack thereof), and film gate or projector aperture dimensions, all of which need to be defined for photography as well as projection, as they may differ.
A perforation is a small hole in a thin material or web. There is usually more than one perforation in an organized fashion, where all of the holes are called a perforation. The process of creating perforations is called perforating, which involves puncturing the workpiece with a tool.
Perforations are usually used to allow easy separation of two sections of the material, such as allowing paper to be torn easily along the line. Packaging with perforations in paperboard or plastic film is easy for consumers to open. Other purposes include filtrating fluids, sound deadening, allowing light or fluids to pass through, and to create an aesthetic design.
Filmmaking (often referred to in an academic context as film production) is the process of making a film. Filmmaking involves a number of discrete stages including an initial story, idea, or commission, through scriptwriting, casting, shooting, editing, and screening the finished product before an audience that may result in a film release and exhibition. Filmmaking takes place in many places around the world in a range of economic, social, and political contexts, and using a variety of technologies and cinematic techniques. Typically, it involves a large number of people, and can take from a few months to several years to complete.
Stan Brakhage filmography
In filmmaking, video production, animation, and related fields, a film frame or video frame is one of the many still images which compose the complete moving picture. The term is derived from the fact that, from the beginning of modern filmmaking toward the end of the 20th century, and in many places still up to the present, the single images have been recorded on a strip of photographic film that quickly increased in length, historically; each image on such a strip looks rather like a framed picture when examined individually.
The term may also be used more generally as a noun or verb to refer to the edges of the image as seen in a camera viewfinder or projected on a screen. Thus, the camera operator can be said to keep a car in frame by panning with it as it speeds past.
Over the course of more than five decades, the American experimental filmmaker Stan Brakhage produced a large body of work. All films in the filmography are assumed to be silent, in color, and are meant to be shown at 24 frames per second, unless otherwise noted. The Brakhage films, comprising his edited originals, intermediate elements, and other original material, are housed at the Academy of Motion Picture Arts and Sciences Film Archive, where a long-term project is underway to preserve and restore his entire film output.]citation needed[
Fifty-six of these films are available on DVD (as two separate volumes) and Blu-ray from the Criterion Collection.]citation needed[
Keykode (also written as either KeyKode or KeyCode) is an Eastman Kodak Company advancement on edge numbers, which are letters, numbers and symbols placed at regular intervals along the edge of 35 mm and 16 mm film to allow for frame-by-frame specific identification. It was introduced in 1990.
Keykode is a variation of time code used in the post-production process which is designed to uniquely identify film frames in a film stock.