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Zhongguancun Online
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four thousand three hundred and eighty-one
At the early stage of the development of micro single camera, the relevant micro single lens still continued the specifications of the SLR era, big three yuan, small three yuan, hundred micro... With the development of micro single camera, the corresponding micro single lens has gradually formed a system. Thanks to the design flexibility brought by the short rear focus distance and large aperture, many lens specifications that are not available in the era of SLR have also emerged. Recently, Canon released two models of RF lens system