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rabbitcookie · 註冊: 2007-10-06 上載我的肖像

Sigma 18-50 F2.8 marco 定 sigma 17-70 f2.8-4.5 f MARCO 好?
我唔知好唔好放左現有個支18-50黎買17-70好...
有咩高見呢?
加tube又點呢?

pongyee · 註冊: 2006-03-04 上載我的肖像

我選 18-50。

但係唔會加 tube。

鍾意影 macro 就兩支都唔選。

eric23sg · 註冊: 2007-10-10 上載我的肖像

相信恒定光圈(由18至50mm都有 f2.8) 光圈, 係會有啲優勢!
但當然價錢亦係考慮之列, 雖然18-50唔係貴好多, 但各人有自己考慮,
如果以平為標準, 睇法可以好唔同!

ken fung · 註冊: 2006-07-23 上載我的肖像

I have brough the sigma 18-50 f2.8 on last month. I found it is not usefull. Due to the range (50) is too short. At last, I took it to the company and change 18-200 OS.

ntwilliam · 註冊: 2006-10-13 上載我的肖像

I have the 17-70mm and am very happy with it. The range is very useful and quality is very good. You can see the lens review at photozone.com.