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Difficulty with Sigma 24-70 AF lens

KA0TVOKA0TVO Registered Users Posts: 164 Major grins
edited June 18, 2005 in Cameras
I have this used sigma 24-70 AF lens that works very well indoors. However, when I try to take a photo in the sunlight I get the dreaded error 99 on my 20d. Put the Canon kit lens on and every thing is fine. I have repeated this several times. I suspect that this lens was for film and early digital auto focus and just isn't a match. Any ideas, recommendations,never have had the error 99 before.
Thanks :scratch
Bob

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    ChaseChase Registered Users Posts: 284 Major grins
    edited June 17, 2005
    I have the sigma 24-70 f2.8 MACRO and have only heard of front focusing issues with the 20d. ne_nau.gif
    www.chase.smugmug.com
    I just press the button and the camera goes CLICK. :dunno
    Canon: gripped 20d and 30d, 10-22 3.5-4.5, 17-55 IS, 50mm f1.8, 70-200L IS, 85mm f1.8, 420ex
    sigma: 10-20 4-5.6 (for sale), 24-70 2.8 (for sale), 120-300 2.8
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    KA0TVOKA0TVO Registered Users Posts: 164 Major grins
    edited June 17, 2005
    Chase wrote:
    I have the sigma 24-70 f2.8 MACRO and have only heard of front focusing issues with the 20d. ne_nau.gif
    I think this is an older lens and just not compatible. Still odd it will work fine inside but not in bright light which makes me think its just not a good match somehow. ne_nau.gif
    Thanks
    Bob
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    KA0TVOKA0TVO Registered Users Posts: 164 Major grins
    edited June 18, 2005
    KA0TVO wrote:
    I think this is an older lens and just not compatible. Still odd it will work fine inside but not in bright light which makes me think its just not a good match somehow. ne_nau.gif
    Thanks
    Sigma says that some of their older lens are not compatible with the newer cameras. However new production lenses- those for digital are fully compatible.:D The seller on ebay is willing to take the lens back, so all is well-WHEW!:D :D
    Bob
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