Film
Film can be used for recording, copying and broadcasting moving
visual and audio media on a material called celluloid.
Celluloid - Transparent plastic sheets used for making cinematographic
films.
The first celluloid film was 16mm, however the smaller sizes resulted
in films having lower picture quality which lead to larger sizes being introduced.
Film can either be a ‘chemical’ or digital process.
When a chemical process, a light sensitive silver halide
emulsion coated on a film base is exposed to light in a camera. This will then
create a latended image which is made visible by emerging the film into a
chemical solution referred to as a ‘developer’. A print can then be made by
projecting the image from the film onto sensitized photographic paper and
processing the paper through a number of chemical baths.
A movie projector is a mechanical device for displaying
motion picture film by projecting it onto a screen.
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