The original camera negative (OCN) is the film in a motion picture camera which captures the original image. This is the film from which all other copies will be made. It is known as raw stock prior to exposure.
The size of a roll varies depending on the film gauge and whether or not a new roll, re-can, or short end was used. 100 or 400 foot rolls are common in 16mm, while 400 or 1000 foot rolls are used in 35mm work. While these are the most common sizes, other lengths such as 200, 800, or 1200 feet may be commercially available from film stock manufacturers, usually by special order. 100 and 200 foot rolls are generally wound on spools for daylight-loading, while longer lengths are only wound around a plastic core. Core-wound stock has no exposure protection outside its packaging, and therefore must be loaded into a camera magazine within a darkroom or changing bag/tent in order to prevent the film being fogged.
Read more about Original Camera Negative: Procedures in The Laboratory
Famous quotes containing the words original, camera and/or negative:
“Wit is often concise and sparkling, compressed into an original pun or metaphor. Brevity is said to be its soul. Humor can be more leisurely, diffused through a whole story or picture which undertakes to show some of the comic aspects of life. What it devalues may be human nature in general, by showing that certain faults or weaknesses are universal. As such it is kinder and more philosophic than wit which focuses on a certain individual, class, or social group.”
—Thomas Munro (1897–1974)
“In what camera do you taste
Poison, in what darkness set
Glittering scales and point
The tipping tongue?”
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—Sara Lawrence Lightfoot (20th century)