Patent
1985-04-16
1986-05-06
Perkey, William B.
354295, G03B 1100, G03B 1302
Patent
active
045868026
ABSTRACT:
A camera for making photographs with special effects comprising a photographic optical system having a path of light for forming an object image on an image receiver, a finder optical system having an optical path for observing a special effect filter arranged in the photographic optical path to bring about a special portrayal effect on the image of the object, and an auxiliary filter having a different characteristic from that of the special effect filter and arranged in the observing optical path to bring about a special effect on the object image to be observed.
REFERENCES:
patent: 1460744 (1923-07-01), Boysen
patent: 2169688 (1939-08-01), Frotschner
patent: 3067664 (1962-12-01), Winslow
Iizuka Kiyoshi
Nagano Akihiko
Canon Kabushiki Kaisha
Perkey William B.
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