发明名称 Camera and lens system capable of automatic focusing and manual focusing
摘要 In a camera system capable of automatic focusing and manual focusing, a mode setting signal set by an automatic or manual focusing setting member provided in a lens device is transmitted to a camera and, depending on the mode setting signal, a manual focusing allowance signal is transmitted from the camera to the lens device, wherein the lens device comes into a manual focusing possible state in response to the manual focusing allowance signal from the camera.
申请公布号 US4933701(A) 申请公布日期 1990.06.12
申请号 US19880253037 申请日期 1988.10.04
申请人 CANON KABUSHIKI KAISHA 发明人 MATSUYAMA, SHINICHI
分类号 G02B7/08;G02B7/09;G02B7/28;G02B7/36;G03B3/10;G03B13/34;G03B13/36 主分类号 G02B7/08
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