[hoying]

我想知邊知好用d
and 兩知ge價格ar!!!!!!
ps. 會配400d

[syuetoey]

推推推...
我都想知多d兩者既比較
有無人可以分享下

對焦速度邊隻好d..
仲有價錢可面..
大家可以講多d嘛

[barryspc]

I used 17-70 sigma on Nikon D70/Fuji S3 Pro before, it was pretty good.



find a used and save some money. it does holds pretty well. I compared it head to head with Sigma 18-50 EX 2.8 and find the 18-50 to be sharper at 2.8

now both of these have HSM so focus speed should be improved. I did not have too much problem with it when I used with Nikon

Canon 17-85 you won't be wrong buying original.

[fish30d]

I have not usd Sigma before, so cannot comment on it, but I have used my friend's Canon 17-85 IS and have to say I am not impressed by its performance. The image is loose, lacking definitions. My friend bought it with 40D as a kit set, but he sold it 2nd hand already (I think $2,700).

[barryspc]

http://www.virtualtraveller.org/sigmavscanon/sigmavscanon3.htm

[barryspc]

maybe you can also consider 17-40 L

[syuetoey]

barryspc;
我睇左個個compare 既webpage..除左個影像會較loose之外..
sigma 會唔會再有其他問題呀..
我聽人講...副廠鏡最大問題係..
係佢個質數會差一d..
好似話個鏡身d料啦..同埋個裝hum 既質數..會易d壞?

[barryspc]

有時買鏡也要睇彩數

我的Nikkor lens 也可能出現支支質數不一的問題

買時同model試多幾支


其實也不用太worry 個webpage 的 detail... 因大體來說，不會是很大的影響。

我個人就prefer 原廠 的 finishing, Sigma 的鏡身不太durable.

原廠同副廠有時好以車一樣，BMW 個spec 可不夠 日本車在字面上吸引，但你要身在其中才可體會佢地的分別

[barryspc]

例如，Sigma 17-70不像nikkor 18-70 沒有把手給我轉鏡時用，我往往要用zoom lock (因zoom ring 同拆鏡方向一樣，拆鏡有點不便

而zoom 的方向和nikon 剛剛相反，也要時間適應。

你用canon可能和我的習慣不同，這些也是因人而異


Sigma 的飽和度我個人覺得不足，和nikkor比較人的色比較淡

[cy001]

Price reflect their difference of quality and durable.

[syuetoey]

師兄:

飽和度即係咩呀.....
係米即係個晝面會loose d
但我見你post 出來張相又幾ok 喎...

不過其實我最擔心都係
對焦速度既問題...
因為如果速度慢又或者好易手震都幾大件事..

對於 入門級用家....買一支鏡既支出已經唔細..
所以我想問多幾個意見先買..
希望唔會配錯鏡

[barryspc]

if you worry about 對焦速度 and 手震

Canon EF-S 17-85 is your choice