fotojoy
Registered Member 
I'm not a pro!
Posts: 125
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Post by fotojoy on Feb 27, 2007 12:16:12 GMT 8
Anyone encountered this problem before? AF doesn't work when 3rd party ext tube is used.
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Marcus
Registered Member
Posts: 455 
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Post by Marcus on Feb 27, 2007 12:36:37 GMT 8
a.... not Macro shooter but I have encounter that problem before. heehee
It will work in super close range with the subject.
Try manual Focus!
Get the focusing by zooming in and out with your hand.
Someone correct me if I am wrong...
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USM
Senior Moderator 
Posts: 1,303
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Post by USM on Feb 27, 2007 17:16:50 GMT 8
Anyone encountered this problem before? AF doesn't work when 3rd party ext tube is used. Joy, which 3rd party extension tube are you using? I am using the Teleplus extension tube on my EF 100mm f2.8 Macro lens and the AF still work. I think that you are trying to shoot beyond a certain range to infinity which is not possible when you mounted a extension tube on any lens. Remember the purpose of extension tube? Lastly, bring your set up on this Friday Photography session if you still cannot figure out the problem. |
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fotojoy
Registered Member
I'm not a pro!
Posts: 125
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Post by fotojoy on Feb 27, 2007 23:38:43 GMT 8
Not using one.... havent got them yet. A fren (nikon user) told me that. So he was advising me to get original Canon ext tubes...  |
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USM
Senior Moderator
Posts: 1,303
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Post by USM on Feb 28, 2007 1:23:42 GMT 8
Not using one.... havent got them yet. A fren (nikon user) told me that. So he was advising me to get original Canon ext tubes... So I see, heard from a Nikon guy. It's a totally different system, sister. If you listen to him and buy the original one, it will cost you a bomb. Drop by on Friday so that I can talk more about it. |
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Post by gilbertgoh on Mar 12, 2007 0:35:57 GMT 8
i just got one. NO PROBLEM!!!!
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snipper
Registered Member
Posts: 627
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Post by snipper on Mar 22, 2007 0:18:04 GMT 8
i'm using kenko tube on my tamron lens on my canon bodies... heck thats 3 different brands and it still works... ;D
USM is right, with the tube on, yr maximum reach will be very near. alternative, you can test out before buying. most shop will let you do that and you can also test out our gears too by joining outings.
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