外媒透露,期待许久的适马无反专用版本70-200mm F2.8 DG DN的重量仅有1050克,这对于此规格镜头可谓羽量级的,要知道体积大幅度缩小的RF70-200mm F2.8的重量也才1070克,适马黑科技又要发力了吗?最后猜测这只镜头或最快2021年末发布。
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