[eddiekan]

我的s/n023xxxx前機天修理後，還是不能準確對焦，只好要求換機，但沒有新機到，只好繼續等......擔心換機後又係失焦。

[SAS_Sniper]

請問您用甚麼鏡頭? 同埋用咩對焦模式? 係咪用AI focus?

[eddiekan]

我用EF50/1.4
EF200/2.8L
EF24/2.8
EF28-105/3.5
對焦一向只用中間一點和用one shot

[Briancat]

I heard that the people bought 10D from DCFEVER hasn't this problem even the customer tested the focus in the shop.

[軍佬]

我前後攪o左成個月，換兩次機，終於有部全新對焦準的 10D。
我用的鏡頭如下：
EF50mm f/1.4 USM
EF17-40mm f/4 L USM
EF28-135mm f/3.5-5.6 IS USM
EF70-200mm f.4 L USM

部新機無論在最大光圈或任何焦距對焦都好準。
所以話：消費權益在你手，據理力爭要開口！

[Agent_Modder]

I just bought one from Wing Shing, serial no 043xxx. Everything is ok, accurate focus with my 17-40. The guy told me this shippment has no problem with the focus. Good luck to you with your 10D.

[軍佬]

跟據我壞一部換兩部的經驗得出，10D最容易出現對焦問題的情況如下：
1) 光圈大過 f/4 (f/1.2-f/4) 及或
2) 焦距 50mm - 100mm

所以想知自己部機有無對焦問題，最好用標准鏡 50mm f/1.8 II or 50mm f/1.4 一試，若用這兩支標准鏡有對焦問題的話，係時候上Canon維修部換新機了！祝 各位 10D影友好運。^^

[davidwng]

I have just got the refund from Canon as they can't replace me a good one without front or back focusing problem. To test the accuracy of focus, you should use short tele lenses at large aperture in order to narrow the DOF as much as possible. Wde angle lenses, such as 17-40 mm, are not good for focus testing as the DOF is wide.

[eddiekan]

今日終於換了新機s/n053...，用不鏡頭拍攝百多張相，對焦準確率有95%正確，就算有失焦也是差很少，對Canon也回復一些信心。

EF24/2.8
EF50/1.4
EF200/2.8L
EF28-105/3.5-4.5
SIGMA15/2.8
KENKO PRO 2X

[lai37]

eddiekan:
你部機0係邊度買?

[軍佬]

恭喜你eddiekan，換了新機就影多 d 佳作俾大家欣賞喇。
好書推介：EF LENS WORK III - The Eyes of EOS (Canon)
Canon SLR & DSLR 用家必讀

[ninekit]

what is this book all about ar ?

does it suggest which lens are better quality? if it does, mind let us know ?

[eddiekan]

兩個月前在萬成買。

[軍佬]

好書推介：EF LENS WORK III - The Eyes of EOS (Canon)

此書由Canon自己出，HK$120，內容係講Canon Lens的歷史、技術及優點。每一支現有的Canon EF Lens的優點及Sample相全落齊，睇完之後要買Canon Lens就可以不求人！掂！

[ninekit]

KIN! checked, amazon UK don't have the book, may i ask you few questions then.

hows the optical quality of the EF 35mm F2.0 and the EF 24mm F2.8 compared to the various L zooms?

and also whats the difference between the EF 200mm F2.8 L, mark I and mark II and how is it compare to the famous 70-200mm F2.8 L IS version in terms of picture output quality?

thanks a million in advance.