✔ 最佳答案
兩支鏡其實半根八兩,唔會有好大分別,不過測試話Sigma嗰支容易有移焦問題,真係買的話一定要帶埋機試.以下是兩支鏡的review.
Tamron 18-200 review
http://www.photozone.de/8Reviews/lenses/tamron_18200_3563/index.htm
Sigma 18-200 review
http://www.photozone.de/8Reviews/lenses/sigma_18200_3563/index.htm
不過用得呢類鏡都係貪方便,十個有九個都唔會成日帶腳架影相,偏偏呢類鏡又長焦又細光圈,其實好多時都要依賴腳架.
強烈建議考慮加多小小錢(大約束1300)買有防震的Sigma 18-200mm f3.5-6.3 DC OS,做到真正一鏡走天涯.
http://www.dcfever.com/lens/lens.php?lensid=294