Camera having special photography function

Details Camera having special photography function Camera having special photography function

1992-08-26

1993-10-12

Perkey, W. B.

354446, 354413, 354106, 354209, G03B 1336, G03B 1700, G03B 1724, G03B 1503

Patent

active

052530078

ABSTRACT:
A camera having a special photography function comprises a focus detecting circuit for detecting a state of focus of a subject, a focus-position altering circuit for altering a focus position of a photographic optical system in response to a detection result provided by the focus detecting circuit, and a special-photography executing circuit for executing special photography utilizing multiple exposure. The special-photography executing circuit is arranged to control the focus-position altering circuit in response to a release operation to shoot one exposure on a photosensitive portion with the photographic optical system placed in an in-focus position and continuously shoot at least one exposure on the same photosensitive portion with the photographic optical system placed in a defocused position on a closest-distance side, thereby effecting the multiple exposure.

REFERENCES:
patent: 3842587 (1974-10-01), Strauss et al.
patent: 4676624 (1987-06-01), Kiuchi et al.
patent: 4723141 (1988-02-01), Hamada et al.
patent: 4937609 (1990-06-01), Wakabayashi et al.
patent: 5086310 (1992-02-01), Iwashita et al.
patent: 5122826 (1992-06-01), Kodaka

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