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Sigma 70 - 300mm F4-5.6 DG Macro has stopped working in AF mode

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    Derfal
    Derfal  4 Jersey
    13 Sep 2012 - 9:05 PM

    Hi,
    My Sigma lens has stopped working in AF mode. When i push shutter button nothing happens. Any Suggestions.
    i have checked that the AF switch is on on the lens and that the camera is not in Manual mode. I have read that these lenses are prone to motor burnout.

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    13 Sep 2012 - 9:05 PM

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    Umberto_Vanni
    Umberto_Vanni e2 Member 9304 forum postsUmberto_Vanni vcard Scotland
    13 Sep 2012 - 9:13 PM

    Sorry to hear that. This may help.

    http://www.ephotozine.com/forums/topic/well-done-sigma-99221

    cats_123
    cats_123 e2 Member 103957 forum postscats_123 vcard Northern Ireland24 Constructive Critique Points
    13 Sep 2012 - 9:22 PM

    have you checked another lens? does that work? is your battery fully charged?

    Derfal
    Derfal  4 Jersey
    13 Sep 2012 - 9:30 PM

    Thanks Umberto
    I have sent an email to sigma

    Derfal
    Derfal  4 Jersey
    13 Sep 2012 - 9:34 PM

    The first thing i did after checking my settings was to change my battery even though the battery in it was fully charged as i was all set to take loads of photos of the Jersey Battle Of Britain Air Display. Ended up not taking any as faffing about trying to fathom out problem. Good job we had a view from home and not had to pay

    Willpower
    Willpower  3163 forum posts United Kingdom
    13 Sep 2012 - 11:13 PM

    As Umberto has already linked you to my experience, all I will say is I think you will probably find Sigma to be sympathetic.

    How old is the lens ? If it is out of warranty then you can see their fixed tariff for repairs HERE I think your lens will come under Tariff 4

    Good luck, you should get a reply from Sigma in your mail tomorrow.

    Christographer_Hull

    What camera is it? Some cameras have AF/MF switches on bodies & lenses. Check them first, may have been caught!

    I don't mean to sound patronising but the most common solution is the easiest one!

    Willpower
    Willpower  3163 forum posts United Kingdom
    14 Sep 2012 - 11:06 PM


    Quote: What camera is it? Some cameras have AF/MF switches on bodies & lenses. Check them first, may have been caught!

    I don't mean to sound patronising but the most common solution is the easiest one!


    Quote: Hi,
    ......................... i have checked that the AF switch is on on the lens and that the camera is not in Manual mode.

    I think he had already checked that.

    Derfal
    Derfal  4 Jersey
    16 Sep 2012 - 8:00 PM

    Hi Guys,
    Sigma have been back in touch.
    Unfortunately I got the Lens back end of 2009

    They sent me address to send to. Just need to package up and send back

    Thanks for all your help

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