Projection with Automatic Cartridge Change
There are basically two cartridge projection systems available — continuous-loop and reel-to-reel, usually combined with automatic rewinding of the film but requiring manual changing of the cartirdge. The Multimatic projection system has been designed to hold up to six 50-ft cartridges simultaneously, with automatic changing from one to another. This is accomplished with two takeup chambers and separate film channels for projection and rewinding. The cartridge is designed to hold super-8 film with the end of the film secured to the core for automatic rewinding. The first film is rewound while the second film is projected, so that the interval between projecting one film and another is about 4 s. Projection can be done at either 18 or 24 frames/s. A pushbutton changes the speed instantly to slow-motion of one-third of either speed and stop motion is provided.
- Print ISSN
- 0361-4573
- Published
- 1971-03
- Content type
- Original Research
- DOI
- 10.5594/J07705