Camera capable of slow synchro photographing

Details Camera capable of slow synchro photographing Camera capable of slow synchro photographing

1991-08-28

1994-04-19

Gellner, Michael L.

354475, 354146, 354147, G03B 700, G03B 1718, G03B 1503

Patent

active

053050509

ABSTRACT:
A camera capable of slow synchro photographing comprises a shutter speed setting mode changeover device for changing over a shutter speed manual setting mode and a shutter speed auto setting mode; a shutter speed restricting device for performing a restriction during the shutter speed auto setting mode to set the shutter speed lower than a slowest shutter speed, i.e., a hand deflection limit shutter speed within a shutter speed range enough not to cause a hand deflection but performing no restriction during the shutter speed manual setting mode; a synchro mode changeover device for changing over a normal synchro mode for working the shutter speed restricting device and a slow synchro mode for releasing the restriction of the shutter speed by inhibiting the shutter speed restricting device from working in accordance with the manual operations; and an indication device for effecting a slow synchro indication for showing that the slow synchro mode is set by the synchro mode changeover device; and an indication control device which permits the indication device to perform the slow synchro indication when a changeover operation to the slow synchro mode is applied to the synchro mode changeover device during the shutter speed auto setting mode but inhibits the indication device from effecting the slow synchro indication even when the changeover operation to the slow synchro mode is applied to the synchro mode changeover device during the shutter speed manual setting mode.

REFERENCES:
patent: 4717934 (1988-01-01), Kobayashi et al.
patent: 4933702 (1990-06-01), Komatsuzaki et al.
patent: 5023648 (1991-06-01), Meguro et al.
patent: 5117250 (1992-05-01), Fujino et al.

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