【佳能3支RF折返超远摄镜头】近日,佳能公布了三枚超远摄折返镜头专利,焦段分别为1200mm F8、 1200mm F5.6以及800mm F5.6,适用于RF卡口。折返镜头好处就是镜头的尺寸会比同焦段的常规镜头小很多,非常便携,当然缺点也是有的,比如画质较常规镜头弱一捏捏,光圈不可变。封面配图为:FDn 500mm f/8.0 Reflex
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