Motion picture camera with a built in color conversion filter

Details Motion picture camera with a built in color conversion filter Motion picture camera with a built in color conversion filter

1976-04-20

1978-01-03

Hayes, Monroe H.

Optics: motion pictures

Removable film strip magazine type

354 21, 354 59, G03B 2302

Patent

active

040663469

ABSTRACT:
The present invention relates to a motion picture camera which includes a color conversion filter for adapting the tungsten type film to the daylight photography, a manual operation means capable of taking the filter out of the photographic optical path and compensating the sensitivity of the exposure meter device in accordance with the removal of the filter so as to adapt the tungsten type film to the tungsten light photography and a detecting means for removing the filter from the photographic optical path by detecting that the film is of the daylight type so that the tungsten type film as well as the daylight film can be used. The camera is characterized in that it is provided with a holding means which is functionally engaged with the above mentioned detecting means so as to hold the sensitivity of the above mentioned exposure meter device in the state to be used for the daylight photography with the tungsten type film when the detecting means detects that the loaded film is of the daylight type, whereby the operation of the above mentioned manual operation means is nullified when the daylight film is used.

REFERENCES:
patent: 3208363 (1965-09-01), Easterly
patent: 3421422 (1969-01-01), Winkler
patent: 3425326 (1969-02-01), Wasielewski
patent: 3613535 (1971-10-01), Hirabayashi
patent: 3625125 (1971-12-01), Iida

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