Camera system with a photometering device and an external...

Details Camera system with a photometering device and an external... Camera system with a photometering device and an external...

2007-12-25

2007-12-25

Lee, Diane (Department: 2851)

Photography

Exposure control circuit

Manually selective exposure mode

C396S238000, C396S509000

Reexamination Certificate

active

11017789

ABSTRACT:
A camera system includes a camera body including a photometering device and an external operating device, and a photographing lens which is detachably attached to the camera body, the photographing lens including an aperture setting device for selecting an auto aperture setting and at least one fixed aperture setting. A full-aperture photometering operation is performed when the aperture setting device is positioned at the auto aperture setting, and a stop-down photometering operation is performed in response to an operation of the external operating device when the aperture setting device is positioned at the fixed aperture setting.

REFERENCES:
patent: 3785266 (1974-01-01), Watanabe
patent: 3872482 (1975-03-01), Akiyama
patent: 3982257 (1976-09-01), Togashi
patent: 3990085 (1976-11-01), Shono
patent: 4692010 (1987-09-01), Kataoka et al.
patent: 5602616 (1997-02-01), Sato et al.
patent: 5878296 (1999-03-01), Ogi et al.
patent: 5-061095 (1995-03-01), None
patent: 3153482 (2001-01-01), None
patent: 2001-109032 (2001-04-01), None
English Language Abstract of JP 05-061095, no date.
English Language Abstract of JP 2001-109032, no date.

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