one more note, most of those photographers also have F2.8 for

来源: 2007-10-12 16:18:39 [博客] [旧帖] [给我悄悄话] 本文已被阅读:

indoor use, so they pick the right tool for their work, and as an hobbiest, you cannot afford to have so many selections, so that you want to limit your total lens to a few manageble.