Question about Canon EOS 400D / Rebel XTi Digital Camera

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Auto focus suddenly stopped working

I have a Canon EOS Rebel xti and switched from AF to MF on the lens barrel. When I switched back to the AF position, it wouldn't work.

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  • chris5515abc Jan 15, 2009

    auto focus stopped working all manual setting work

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This may not be the same as your issue, but our AF stopped working as well. I tried all the recommended fixes - removing the card and battery, recharging the latter, removing the lens and cleaning the contacts, etc. None of those things worked. However, I then switched to MF, requiring me to turn the barrel, and I realized it was stuck and just needed a little force to get unstuck. Might have been the humidity. Anyway, our problem was solved - AF was back to normal after that.

Posted on Aug 24, 2009

  • yvettech Jun 13, 2011

    On holiday and half way through AF has stopped working altogether and I have been struggling with MF. Thank you for your tip my camera/AF is now working perfectly after giving the lense a harder tug.

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Turn the camera off and remove the battery. Wait a few seconds then plug the battery back in. This should cause the camera to reset itself and hopefully get the autofocus working again.

Hope this works for you

Posted on Feb 09, 2009

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