其实简单，米多就上 2.8, 否则，F4。不过已经到1000多了，再咬牙就有F2.8 VRII。

来源: 多城居士于 2013-01-10 14:27:26 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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