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高倍率变焦 佳能发布三支长焦变焦镜头专利
source link: https://finance.sina.com.cn/tech/2022-04-07/doc-imcwiwst0342415.shtml?cre=tianyi&mod=pctech&loc=11&r=0&rfunc=68&tj=cxvertical_pc_tech&tr=181
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高倍率变焦 佳能发布三支长焦变焦镜头专利
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佳能最近专利不断，在今天又公布了三支长焦变焦镜头的专利——60-600mm F4.5-8、70-700mm F4.7-8、80-800mm F5-9。此三支镜头专利均属于RF卡口全画幅机身的专利。由于无反光相机传感器的优势。 因此，与以往的单反卡口镜头不同，无反镜头结构等的设计自由度提高，能够设计出小型且轻量的镜头。类似于佳能已经推出的RF600mm F11 IS STM以及RF800mm F11 IS STM。
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