[felix_lung]

見 用家心得 果度, 有師兄話5DII 係用 500D 既對焦系統.
http://dcfever.com/cameras/readreviews.php?id=1039

佢仲話 "我出左拍夜景二次用好一半時間開live放大用手動對焦.呢點就係有d唔抵"

5DII 對焦真係屎成咁? 真定假呀??

我用緊400D,心郁想將5DII 帶返屋企.

[amadeus_hk]

我影夜景, 唔係用手動鏡. AF ok wor.
夜景風景又有, 閃燈人像又有....

[amadeus_hk]

可能我以前用olympus, om 真係暗d都對唔到...
5d2 好過 om....
但無同其他 Canon 比過

[felix_lung]

我自己用400D, 50 1.4 真係唔夠光對唔到焦. 24-105就好D.
其實係咪關支鏡事多D呢???

[Obi-Wan]

I am using 5D2, 20D & 50D, the AF system of 5D2 cannot even compare with 20D! For 20D, I got higher % in-focus photo with 70-200/2.8IS on flying birds. BUT with 5D2, I got none so far with the same 70-200/2.8IS lens!

**** 5D2 is just a full frame 500D in terms of AF system, nothing special in AF speed *****

[Marksman01]

呢張現場架車幾乎無光無contrast映, 一接既仲, 用9 點全自動one shot AF, ISO25600, 1/20s, f/2.8 handheld.

注: 當時9個對焦點都糸黑色車身上面



得唔得或用唔用得著就要睇樓主自已勒. 如需要我還有很多sample photos 供參考.

[Marksman01]

還有5D2 個AF糸唔同500D的

[卍明仔卍]

500d夜晚都對到.搵d吾好一片同一隻色的地方就ok...
感覺同之前用的dc仔天同地比.
不過開live view就差過舊時dc仔=_=...

[h0001244]

As I remember, 5D system has 6 invisible focus point for AI-Servo

[Obi-Wan]

h0001244

Yes, even if u turn the 6 invisible focus point on or off, it still cannot focus on fast moving object as 20D & 50D. This is the conclusion from many many photos on flying birds. If u don't believe, u can borrow a 50D & compare it face to face to 5D2 with the same lens. [I have done this comparison one year ago]

[louis277]

<<< I am using 5D2, 20D & 50D, the AF system of 5D2 cannot even compare with 20D!......**** 5D2 is just a full frame 500D in terms of AF system, nothing special in AF speed *****>>>

阿obi-wan你起初用20D同5D2比AF但係結論竟然係5D2同500D個AF類似?!!!呢啲係乜嘢邏輯呀?

[Marksman01]

louis277, 佢糸咁架啦, 我都同佢艾左好耐呢個 topic, 我懷疑估渣住部壞壞地既5D2!

[Marksman01]

For 樓主, 睇下裹面d 相就知5D2 個AF 水平去到邊

http://www.dcfever.com/forum/read.php?f=12&i=65427&t=65427&phorum_auth=18ee5a29452482a3962f0bcc20c9603d&page=3

[yung2]

對焦的靈敏/準確度都同支鏡有影響, 唔單只關個機身事.

[Marksman01]

全對!