The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2007
Filed:
Dec. 22, 2004
Tadahisa Ohkura, Saitama, JP;
Yutaka Ohsawa, Tokyo, JP;
Shigeru Iwamoto, Saitama, JP;
Hiroyuki Takahashi, Tochigi, JP;
Tadahisa Ohkura, Saitama, JP;
Yutaka Ohsawa, Tokyo, JP;
Shigeru Iwamoto, Saitama, JP;
Hiroyuki Takahashi, Tochigi, JP;
PENTAX Corporation, Tokyo, JP;
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.