[h0001244]

Many ching like Sigma 150mm because its longer focal length compare 100mm and cheaper price and larger aperture compare with 180mm
But the only thing is that 150 doesn't have OS
Now, OS is added to 150mm
Good news, hope it be not that expensive.

[rankinelo]

this lens is really incredible.... !!! 150mm is far more useful !!!

[ssannwong]

There is a new Sigma 120-300mm f/2.8 EX DG OS HSM also. How heavy it will be?? Old non-OS version is 2.6kg already~

[rodman911]

Compare with EF100L, it will be good only if it can keep the OS 2級 in 1:1 close up shot.

http://www.canon.com.hk/tc/Consumer/Product/ProductDetail.aspx?product_id=100327&series_id=48

混合型光學影像穩定器全新開發的演算系統，為EF 100mm f/2.8L Macro IS USM帶來顯著的效果，除於一般拍攝時提供4級快門防震外，更是市面上唯一於1.0x放大率微距拍攝時仍能保持2級快門防震效果的鏡頭，最適合作微距生態拍攝，捕捉大自然最傳神一刻。"

[Mr.CK]

Sigma 我覺得它真係幾進取, 150mm Marco OS, 120-300 2.8 OS 未必好過原廠, 但一定平過. 最重要的是它新出的幾支lens真是很不錯, 玩家多D選擇一定好啦.

[laupcqc]

I just bought the old 150mm 3 months ago! If it' around $6500 I must upgrade it otherwise need think think, as I usually use > 1/400 speed for butterfly and insects photo. OS is only for indoor or still objects. And I think optical quality and resolution is very close coz' both of them are prime lens already!

[h0001244]

laupcqc ching,

I guess you don't have to upgrade if you keep 1/400
you can use flash for indoor

[wesleyyau]

我o既target 依然係EF 180MM MACRO L "IS"... ^_^"