Photography – With exposure objective focusing means – focusing aid – or... – Having indicator
Patent
1996-10-10
1997-09-09
Perkey, W. B.
Photography
With exposure objective focusing means, focusing aid, or...
Having indicator
396223, 396290, G03B 1718
Patent
active
056665709
ABSTRACT:
A camera comprises a lens optical system including a zooming lens, a photographic mode setting circuit capable of selectively setting a plurality of kinds of photographic modes, exposure conditions being individually set for the respective photographic modes, a driving circuit for causing the zooming lens to move, a focus adjusting circuit for performing focus adjustment of the lens optical system, and a controlling circuit for controlling the driving circuit in accordance with a particular photographic mode set by the photographic mode setting circuit and forcedly moving the zooming lens to a position corresponding to a predetermined focal length, the controlling circuit moving the zooming lens before an operation of the focus adjusting circuit.
REFERENCES:
patent: 3839724 (1974-10-01), Muryoi
patent: 4341451 (1982-07-01), Krueger et al.
patent: 4692008 (1987-09-01), Arakawa et al.
Canon Kabushiki Kaisha
Perkey W. B.
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