佳能28-70/2.8与28-60/4镜头专利曝光

新浪科技综合2021-11-22

本文来自色影无忌 近日佳能一项镜头变焦至长焦端时会变短的专利曝光。变焦镜头通常情况是相反的。 asobinet.com发现了一项佳能专利申请。镜头为 f2.8/或f4 标准变焦镜头,但canonwatch认为它永远不会投入生产。 该专利要解决的问题: 提供一种具有大光圈、小尺寸且具有高光学性能的变焦镜头。 近年来,随着摄像设备的功能化,要求小型且轻量,还要大光圈的变焦镜头。作为满足该要求的...

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