Coded roll film holder and code responsive camera

Details Coded roll film holder and code responsive camera Coded roll film holder and code responsive camera

1985-03-04

1986-07-01

Perkey, William B.

354159, 354216, G03B 724, G03B 1702, G03B 1904

Patent

active

045976546

ABSTRACT:
A plurality of roll film holders are individually coded to indicate respective negative sizes, such as 21/4.times.15/8 ins. and 21/4.times.23/4 ins., on separate rolls of similar type film. A multi-format camera for taking pictures in the different sizes is adapted to receive the film holders. The camera includes a variable size exposure area and code responsive means for determining the effective size of the exposure area in accordance with the negative size coded on a film holder received in the camera.

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patent: 4435060 (1984-03-01), Kobayashi

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