二选一的话还是应该上 f2.8 IS。

来源: 一圆半圆于 2012-11-20 19:32:48 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.