Film Stock - Intermediate and Print Stocks

Intermediate and Print Stocks

The distinction between camera stocks and print stocks involves a difference in the recording process. When the work print or edit master has been approved, the Original Camera Negative (OCN) is assembled by a negative cutter using the edited work print or EDL (edit decision list) as a guide. A series of Answer Prints are then made from the OCN. During the Answer Print stage, corrections in the film's density and color are corrected (timed) to the filmmakers' tastes. Interpositive (IP) prints are struck from the OCN, checked to make sure they look the same as the custom timed Answer Print, and then each IP is used to make one or more Dupe Negative (DN) copies. The release prints are then generated from the DN(s). Recently, with the development of digital intermediate (DI), it has become possible to completely edit, composite visual effects, and color grade the image digitally at full resolution and bit-depth. In this workflow, the answer print is generated digitally and then written out to the IP stage using a laser film printer.

Due to the specialized nature of the exposure and the higher degree of control afforded by the film lab equipment, these intermediate and release stocks are specially designed solely for these applications and are generally not feasible for camera shooting. Because intermediates only function to maintain the image information accurately across duplication, each manufacturer tends to only produce one or two different intermediate stocks. Similarly, release print stocks usually are available only in two varieties: a "normal" print or a deluxe print (on more-costly print film like Kodak Vision Premiere) with slightly greater saturation and contrast.