[piscesh]

Canon EF 70-200 F4L + 什麼 2 x extension tube 可以 AF

有沒有人用過, 請指點

[darrens]

買支小白/小白IS就ok(可以AF)
不如買支大白比小小白用來打雀更好
我並不建議買2X extender在DSLR之上

[twynson]

有朋友試過,用膠紙把鏡頭頭三點釘貼住.(五點為一組那邊).

騙了相機沒有加 extender, 可以AF

[twynson]

補充:: 要用 副廠 extender..
CANON extender 無效

[jclubaap]

我用緊TAMRON的2X ,配小小白OK,可以 AF,唔駛貼膠紙喎, 不過係唔可以用在超過 300MM 的ZOOM上, AF只在200MM內先準同可用,不過我都想知點樣貼個3點,同埋在何鏡先要咁樣貼呀,泰臣兄唔該指教下吖

[intel875]

Extension Tube不是加放大率嗎?

[big 熊]

X1.4 , X1.7 , X2 = CONVERSION TELEPLUS / 增距鏡(含鏡片)

12MM,20MM,36MM = EXTENSION TUBE SET / 近攝環(不含鏡片)

[piscesh]

Kenko extender 能不能 AF

[kahox02]

2x 定 extension tube?

[piscesh]

2x

[yk]

按Canon增距鏡資料所示，由135mm至1200mm定焦及小小白、小白、大白都可加裝的，但要注意最大光圈4或更小的2x是沒有AF，而最大光圈5.6或更小的1.4X及2X都是沒有AF。泰臣說得對，用膠紙擋住3粒接觸點這方法，對原廠的是沒有作用。

[kahox02]

我試過17-40 f/4L 同70-200 f/4L,
用
1. Kenko 2x - 好難對得到,但仍有AF(十次得兩次中)
2. Tamron 2x - 用到AF,但好慢
3. Canon 2x (只在70-200f/4L) - 無AF

[piscesh]

kahox02

你會選擇那一個牌子

[Minkun]

kahox02 :

kenko2x for digitial on 17-40 ok ??? how about tamron 28-75 use with kenko2x for digital ??? no AF also ok for me

I'd posted this question at dchoxx.net, many people attacked me and they said nobody will do this. But they didn't use their head, didn't think about why people want to do this. Only laughing at the questions of the others by so-called big brothers on cameras, shame on them. U won't get any answers from there but only attacking by many people with bull @!#$.
In HKG, many people think that they've well knowledge on photography theirselves. They don't understand they're only having knowledge of "CAMERA". U can't see anything on their online photo album when checking but so much bull @!#$.....
Hey, So-called big brothers on cameras(only), did u see any articles about National Geographic's men with the lens they made by theirselves ???

[piscesh]

我知怎樣選擇了 thank you