发明名称 Camera system
摘要 An interchangeable lens for a camera having a focus detecting device includes a memory having a plurality of memory areas. Each of the memory areas stores different correction values for correcting the focus condition of the lens for aberrations. Setting apparatus is coupled to the memory and allows the correction values from one of the memory areas to be enabled in order to carry out correction of the lens focus.
申请公布号 US4912493(A) 申请公布日期 1990.03.27
申请号 US19890355873 申请日期 1989.05.23
申请人 CANON KABUSHIKI KAISHA 发明人 TANAKA, TSUNEFUMI
分类号 G02B7/34;G02B7/02;G02B7/09;G02B7/36;G03B13/36;G03B17/14 主分类号 G02B7/34
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