发明名称 Zoom lens
摘要 A photo-taking lens having lens elements arranged to permit change-over of aspect ratios of an effective image pickup plane and to mitigate a change in angle of view caused by the change-over of aspect ratios is provided with a display device for displaying a shooting condition which varies according to the change-over of aspect ratios. <IMAGE>
申请公布号 EP0724185(A1) 申请公布日期 1996.07.31
申请号 EP19950101068 申请日期 1995.01.26
申请人 CANON KABUSHIKI KAISHA 发明人 KAMAI, TAKASHI
分类号 G02B7/10;G03B17/18 主分类号 G02B7/10
代理机构 代理人
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