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Thread: D3100 Cannot AF in Live View ?

  1. #1

    Default D3100 Cannot AF in Live View ?

    Hi,

    Just got a D3100 body only.

    Notice that for my Sigma 17-70mm F2.8-4.5 HSM,
    it cannot AF when in Live View.

    For my Sigma 50-150mm F2.8,
    it can AF both in normal and Live View.

    The manual did not have much info on this aspect.
    Anyone encounter similar limitations ?

  2. #2

    Default Re: D3100 Cannot AF in Live View ?

    maybe it's that lens compatibility issue on newer cameras

  3. #3
    Senior Member ZerocoolAstra's Avatar
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    Default Re: D3100 Cannot AF in Live View ?

    Quote Originally Posted by redwine View Post
    Hi,

    Just got a D3100 body only.

    Notice that for my Sigma 17-70mm F2.8-4.5 HSM,
    it cannot AF when in Live View.

    For my Sigma 50-150mm F2.8,
    it can AF both in normal and Live View.

    The manual did not have much info on this aspect.
    Anyone encounter similar limitations ?
    If your lens can AF when shooting normally (ie using VF), it puzzles me how come AF doesn't work in live view.
    I don't have that lens or body, so I can't verify.
    Interested to see if someone can shed some light on this.

    No issues with my 3rd party lens (screw-driven AF) on my cam in live view.
    Exploring! :)

  4. #4
    Member
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    Singapore, Singapore, Singapor
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    Default Re: D3100 Cannot AF in Live View ?

    Quote Originally Posted by redwine View Post
    Hi,

    Just got a D3100 body only.

    Notice that for my Sigma 17-70mm F2.8-4.5 HSM,
    it cannot AF when in Live View.

    For my Sigma 50-150mm F2.8,
    it can AF both in normal and Live View.

    The manual did not have much info on this aspect.
    Anyone encounter similar limitations ?
    its e lens AF compatibility in live view.. my tamron 17-50 also cannot AF in liveview, whilst my sigma 70-200 f2.8 II can..

  5. #5

    Default Re: D3100 Cannot AF in Live View ?

    Quote Originally Posted by tkte0408 View Post
    its e lens AF compatibility in live view.. my tamron 17-50 also cannot AF in liveview, whilst my sigma 70-200 f2.8 II can..
    I also suspect its the lens compatibiliy issue.
    Looks like i'm not alone.

  6. #6

    Default Re: D3100 Cannot AF in Live View ?

    My D3100's AF doesn't work with my sigma 50-150 (version I). Compatibility issues I guess.

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