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Thread: Extension tube

  1. #1

    Default Extension tube

    Hi saw this at ebay - for canon dslr. Was wondering if it actually work? Anyone tried using it before? Its like S$20 incld shipping.

  2. #2
    Senior Member
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    Clementi
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    Default Re: Extension tube

    Looks like it doesn't have electronic contacts. You won't have autofocus and electronic aperture control on the lens that you mount on top of the tubes.

  3. #3
    Senior Member
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    Apr 2008
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    Singapore, east-ish
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    Default Re: Extension tube

    yea, looking at the price and the picture you gave, realistically, it won't work on lenses that don't have an aperture ring

  4. #4

    Default Re: Extension tube

    Does the Canon EF 25II have autofocus and electronic aperture control?

  5. #5
    Senior Member giantcanopy's Avatar
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    Feb 2007
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    Default Re: Extension tube

    Quote Originally Posted by fitzy View Post
    Does the Canon EF 25II have autofocus and electronic aperture control?
    Does have for the EF, EF-S.

  6. #6

    Default Re: Extension tube

    Thanks for the clarification.

  7. #7

    Default Re: Extension tube

    You can get a set of extension tubes with EF contacts for about $100+. Useful for preview the DOF effects. AF is practically useless though.

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