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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