[snoopy史]

我想買支鏡代替D70支KIT鏡，sigma支18-50F2.8好嗎?

[ousi]

It can nearly beat Canon's 17-40 L at wide angle at f/4.
It's a good 3-rd party lens, however, you may miss the range from 51 to 70. If you still don't have a tele lens, I suggest you to go for Nikon's own 80-300 ED lens, it just costs around 3k and it's good quality. If you want a cheap one, get a 70-300 APO from Sigma, which got macro focus and just costs 1.4k

(Am I poisoning you???? Maybe....)

[snoopy史]

我已有支VR24-120ED，我個人覺得質素比KIT鏡好一些，由於質素和range都相當接近，所以打算賣了支KIT鏡，然後買支sigma18-50F2.8，以補VR24-120的廣角和光圈不足！

此外，我已有SIGMA70-300marcoII，以千多元的價錢來講，這支鏡的質素已算不錯，再加marco可達1:2，故可作長鏡和微距鏡之用。

[ousi]

Here are the reviews for the 18-50 f/2.8

http://www.topicpoint.com/sigma_18-50mm/index.html
http://jet.turtlewax.net/sigma-review/

[snoopy史]

ousi兄：

謝謝你的意見和提供的review！

我昨晚已經買了sigma支18-50F2.8，回家試了一會之後有點擔心，因為我用50mmF2.8影了一些相片發覺很soft，效果不太理想！

但看完你提供的review之後就安心很多，因為意想不到sigma這支平價恆定F2.8光圈鏡，效果竟然如此受到高度評價！就正如review所講，這支鏡用F2.8大光圈及tele時會比較soft，但用wide時已有進步，收細一級光圈更有明顯改善，質素比canon的17-40f4.0L和24-70F2.8L更好！

[ousi]

You're welcome!

I do think that it may be the BEST Sigma UWA zoom available now. It can really beat/on par with the much more expensive 17-40 f/4L.....

For the tele, if you're in 40mm range, it is still on par with 17-40L, don't worry.

[snoopy史]

這支鏡其實都不太平，比起同廠的24-70或28-70F2.8都要貴少許，但由於鏡頭較細，加上沒有內置對焦顯示，外觀感覺很cheap，沒有其他ex鏡那樣"貴格"，所以買時都有點猶豫！幸好質素很好！

[snoopy史]

"攝影家手扎"剛剛發表了一篇有關上述題目報導：分析了五支canon接環廣角標準鏡包括原廠CANON17-40F4.0L,18-55KIT鏡,17-85 IS USM,SIGMA的18-50F2.8和TARMON17-35F2.8-4.0

www.photosharp.com.tw/photosharp/Content.aspx?News_No=1708&Lang=0

這個 review同樣對sigma18-50F2.8的評價甚高！

[cow_size]

我對此鏡都甚有興趣, 仲有無兄弟支持下我買呢?