[tklamtklam]

請問24-70L 2.8 , 24-105L f4 邊個好啲！

[dichomate7]

冇話邊個好D ge，其實主要depend on你有咩用途
你要大光圈，拍人像夜景等，就要24-70
你要IS防震，拍片影風景，想輕便D，1-2鏡搞掂就24-105 la

[iCatchU]

My 24-105L is sharper than 24-70L.

[t502kg]

點解經常理解f2.8係用嚟影夜景人像呢？其實真係唔多得囉，可能我技術有限，不過我認為f2.8真係唔多夠

[dichomate7]

至少比24-105 的F4 好

[ncychan]

至少比24-105 f4 好 x 2

Icatchu Ching, 可否有例子告訴小弟24-105 f4 怎樣 sharper than 24-70 f 2.8?

t502kg ching, 完全同意你覺得f2.8唔夠用。但在光學結構上，要做一支大過f 2.8 的24-70 zoom lens，會變成非常龐大及重量十足，比小白兔更重，我怕沒幾多個人拿得起影相，更失去機動性靈活。

[JasonMan117]

睇下$$$係唔係問題...
24-70 一定唔會按價錢比例好個24-105...
但好多師兄師父們用錢投了票...

[Obi-Wan]

I have both 2478 & 24105 before, now keep 24105

My copies
Sharpness (based on my 5D & 5D2):
2470@2.8 < 24105@4 < 2470@4

Distortion: 24105 is much much worst than 2470

Both are good lenses, buy 24-105 if u want IS, buy 24-70 if u think f2.8 is a `big aperature'

(in fact 2.8 is not a big aperture, I prefer 24L, even @f2.0 is tack sharp, once u used prime lens, u cannot easily switch to zoom on DSLR if u really want tack sharp photos)

[iCatchU]

Totally agreed with Obi-Wan ching.

[ncychan]

Obi-wan Ching,

Thanks for your comments. But I am not very sure sharpness 2470@2.8 < 24105@4. Maybe I need to do a "A to A" double check sometimes .

Very agree that prime lenses can have real "big aperture" and be sharper than zoom lens but they all are not cheap . 毒性太強. 不可一可再.

X D

[shirleytam2046]

現今大光圈定焦鏡在二手巿場是很容易找到合理價買入，全因有部分新人不知如何使用定焦鏡就隨便入手而放出！買入後還很輕易用原價沽出呢！如識每個焦段的運用，是不用擔心價錢的問題。

[ncychan]

"買入後還很輕易用原價沽出呢！" @ L @

[sandmok]

"買入後還很輕易用原價沽出呢"

囧