For 1/3 of the cost, you can get Tamron 17-55mm f/2.8

来源: 于 2007-04-04 09:04:16 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

It is as sharp.

As Fruitpassion already mentioned, f/2.8 is still slow.