Internegative
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Internegatives are elements of film stock that are used to make the thousands of release prints for movie theater.
[edit] Overview
The internegatives are the workhorses of the film industry.
Internegatives are made on the exact same stock as interpositives. The film processes usually go from one polarity to another, that is:
- the camera operator shoots a positive image and the film ends up as a negative.
- the original negative is printed onto stock that comes out as an interpositive
- the interpositive makes an internegative, and finally
- the internegative makes the positive release print.
When an internegative wears out during printing, a new internegative is made from the interpositive and release printing resumes. There are some films (reversal films) that can go from positive to positive or negative to negative but are not used very often so are not included in this discussion.
The question comes up as to why the original camera negative are not used to make the release prints. Each time the camera negative is run through the printing machine there is a hazard that the film could be damaged. Since the camera negative is the only zero-generation source, that risk would be unacceptable.
