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Old May 9, 2010, 8:28 AM   #1
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Default Tamron 180 Help ?

I got a Tamron 180 Friday and tried it today. Took 30 shots and it quit auto focusing…doesn’t even try….just ‘dead’. It will manual focus but have to set the switch on the camera to manual as where didn’t have to do that step before when auto focusing was working. ..I’m using a Nikon D200. Any Ideas??
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Old May 9, 2010, 8:40 AM   #2
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Does the lens have an aperture ring? Is the aperture ring set at the smallest (numerically largest) aperture. Is the aperture lock lever locking the aperture ring?
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Old May 9, 2010, 8:55 AM   #3
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Yes, the aperture is set and locked, first thing I checked when it quit working., even moved it and relocked it.
Thanks for the suggestion, any others I mite try.
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Old May 9, 2010, 9:13 AM   #4
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That lens can switch between MF and AF by sliding the focusing ring along the lens barrel. Sliding the focusing ring toward the camera body switches to MF, while sliding it away from the body switches to AF. Does the focusing ring slide appropriately, or is it stuck?
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Old May 9, 2010, 9:43 AM   #5
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It slides back and forth between AF-MF, makes the little clicking /locking noise. Before it quit AF when put in MF it was nice and smooth focusing...now when put in MF it is locked solid till move the camera to MF, then smooth focusing like before.
Appreciate the help. any other ideas?
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Old May 9, 2010, 11:07 AM   #6
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That sounds bad. Do you have any other lenses that AF ok? Do any of them have their own AF/MF switch?
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Old May 9, 2010, 1:40 PM   #7
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Yes, I know it doesnt sound good, thouhgt mite be something simple I was overlooking. Yes, other lenses auto focuses ok, and my 300 has a A/M switch and it does right. Bought it used from place down in Georgia, will cal them tomorrow.
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Old May 9, 2010, 3:56 PM   #8
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Good luck. Let us know how it turns out.
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Old May 9, 2010, 9:17 PM   #9
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Thanks TCav for the help...I'll let you know what I find out.
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Old May 10, 2010, 2:47 PM   #10
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Tcav, called today and sending back in for warranty repair. Should be a couple of weeks before get back.
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