[sprandy]

其實我想買這支鏡, 不過見網上多數人都講呢支鏡會失焦, 其實情況會唔會好嚴重呢? 大家可以俾D意見嗎? 而且我都有諗過買支50mm f/1.2L的, 不過我唔係好習慣用定焦, 雖然1.2超大光圈好吸引, 不過影BB成日郁黎郁去坐唔定, 有少少變焦好似會方便D, 大家點睇 ?

[gwu1]

f1.2 is quite attractive when compared with f2.8.

[JSmith]

24-70mm 都話失焦？技術差唔好意思講出口姐.....
咁都好信？

[chunwotam]

BB成日郁黎郁去坐唔定，更加需要1.2大光圈啦

[JSmith]

1.2咁大光圈，重要fing來fing去捕捉BB，一定冇左隻蕉啦﹗

[liyfk]

24-70mm 都話失焦？技術差唔好意思講出口姐.....
咁都好信？ x1000

[sprandy]

其實我諗緊係未必下下張張都用死1.2超大光圈影, 不過f2.8個淺景深效果OK嗎? 有冇D SAMPLE相可以睇下呢?

[ccrsc]

都唔係架，事實上我做過個test，我支鏡都係極輕微移焦。
http://bbs.ocqq.com/viewthread.php?tid=20177

[tzemang]

影bb，特別係屋企室內光時，可以用快d快門，我用d300，用快門先決1/30-1/120，再推高iso到1000，可以fix到大部分bb。記住唔好落閃光，會傷bb眼。如果用埋連拍，會再提高拍攝成功率。

[iso_ray]

如果室內影BB用F2.8我諗你最低都要配40D+ISO800-1600

我自己就400D+50.4, 用F1.4-2.2+ISO400-800, 都會經常失焦, 但成功率比F2.8高出好多, 因為BB真係超高速移動生物>.<"
當然, 都要睇吓室內燈光夠唔夠, 如果你屋企吊左幾支水晶大燈就另計喇

[yiu_hei]

如果室內影BB用F2.8我諗你最低都要配40D+ISO800-1600

我自己就400D+50.4, 用F1.4-2.2+ISO400-800, 都會經常失焦, 但成功率比F2.8高出好多, 因為BB真係超高速移動生物>.<"
當然, 都要睇吓室內燈光夠唔夠, 如果你屋企吊左幾支水晶大燈就另計喇


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佢郁得快唔快同支鏡係咪失焦有咩關係?@@

可唔可以解釋下咩係失蕉?

[iso_ray]

以我理解失焦係拍攝者失誤以致錯失對焦點, 同鏡頭走焦有咩關係呀?

不如你開心見成講你想講咩好過啦, 都唔知你想講乜.

[69888]

I THINK 85 IS NOT SUITABLE FOR U BECAUSE IT IS TOO HEAVY, 24-70 IS THE BEST, I DID NOT FIND ANY PROBLEM AT ALL.

[yls]

我以24mm, f/2.8 用shutter繩加腳架距離物品4m, 單點對焦, 拍攝出來照片在photoshop 100%看, 照片係唔 sharp, 我俾個file canon 睇, 佢地話係正常. 有無 c hing 有同樣經驗!!!

[cy001]

i used 24-70mm, it is a very good len. don't believe someone say "多數都失焦".