Camera for different speed films

Details Camera for different speed films Camera for different speed films

1978-08-21

1980-08-12

Hix, L. T.

Optics: motion pictures

Removable film strip magazine type

352 78C, 354273, G03B 700, G03B 718, G03B 904, G03B 1718

Patent

active

042170427

ABSTRACT:
A camera for receiving a cartridge containing relatively high or low speed films has an adjustable aperture mechanism for regulating the amount of light exposing the film, and a manual control mechanism operatively associated therewith and movable between "sunny", "cloudy" and "flash" settings to provide respectively "small", "intermediate" and "large" apertures for high speed film. The cartridge includes structural means thereon of a predetermined configuration in accordance with the speed of the film contained therein. An automatic control mechanism operatively associated with the adjustable aperture mechanism senses the structural means on the cartridge to increase the "small" aperture to the "intermediate" aperture and the "intermediate" aperture to the "large" aperture for low speed film without changing the settings of the manual control mechanism.

REFERENCES:
patent: 3125939 (1964-03-01), Bundschuh et al.
patent: 4096490 (1978-06-01), Fujita
patent: 4121230 (1978-10-01), Ohmura et al.

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