Super-8 Release Prints with Optical Sound for a Training Program
In a training program for medical personnel, a one-hour color film with optical sound is distributed in cartridges on a weekly basis. Though the ultimate aim is a one-hour program on a single 400-ft reel, a special printing stock with a total thickness of no more than 2.3 mils would be required to achieve that goal. At present two cartridges with 7-in reels are used. The original films are shot entirely on 35mm color negative film. From the edited negative a quad super-8 dupe-negative is produced. On a special optical-sound camera a quad sound negative is recorded in one run from a 17.5mm or 16mm magnetic tape. Both negatives are contact printed onto a color positive film of approximately 4-mil thickness with polyester basis. Factors affecting optical and sound quality are discussed.
- Print ISSN
- 0361-4573
- Published
- 1971-03
- Content type
- Original Research
- DOI
- 10.5594/J07703