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02-27-2010, 03:46 PM   #1
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HELP!!!! Sigma 150-500mm Problem

I have had the Sigma 150-500mm for about a week and it has worked flawlessly. However, just a few minutes ago, the AF stopped functioning. The switches on both camera and lens are in AF positions, but when I turn the camera on with the lens attached, it shows MF on the initial info screen. This occurs on both my K20D and Kx. In addition, on the K20D, I can't access any menus or use the function key. When I press a button, the screen flashes to the correct display but goes blank within 1/2 second. All other lenses work fine. Is there something that the HSM motor is doing? I think the lens may be hosed and I should send it back. Has anyone had this problem or something similar before?

02-27-2010, 10:56 PM   #2
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If it's a One Week Old lens then Yes, Send it back. Sigma's a good company and will most likely have it fixed quickly.
02-27-2010, 11:45 PM   #3
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there is a boton on lensess thich have bad conection to the camera and dont let the AFwork
go to labaratory of sigma they can rise and repair the conections to make beter contacts
this is going resolve your problem
03-01-2010, 08:30 PM   #4
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Thanks for all the input. I Shipped off to C.R.I.S. in Arizona this morning. They said that it should be a 2-4 week turn around depending on parts support. We'll see.....

Thanks again!!

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