Question about Tamron 18-250mm F/3.5-6.3 AF Di-II LD Aspherical (IF) Macro Lens for Konica Minolta and Sony Alpha D...

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Auto focus problem

I was out taking pictures in a very cold day and suddenly the auto focus of my Tamron stoped working. Now instead of focusing, when i press the photo trigger the lens just zooms in and out without focusing at all. the only way that i seem to be able to use the camera is if i use the lens manually. Is there anything I can do?

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  • LCarlsson Dec 29, 2007

    It was very cold for my taste - 4C!

    I'm very sorry because the lens was new. I bought it at the end of november and I liked it! Thank you for your reply! Happy New Year!

  • LCarlsson Jan 27, 2008

    My Tamron is repaired and working fine now. It was a problem with the SENSOR and had nothing to do with the cold weather. It was a very unusual problem and I had bad luck, I've been told. The repair cost me almost 1/4 of the price of the lens! Thanks for trying to help me!

  • BBoogie Feb 26, 2008

    I have the same problem.

    Just purchased the Tamron 18-250MM lens for my Canon Rebel 350 and cannot get it ito work on autofocus. It just zooms in and out and will not snap a picture. Works fine on Manual though.

  • bindsocket Jan 09, 2009

    I did the exact same thing with my 28-75 f2.8; went out shooting some christmas lights on a really cold night. Not as cold as yours but around 12-15 degrees F. After that the autofocus no longer works. Just makes a whining sound every time I try to make it autofocus.



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My first suggestion is to send it back if it is under warranty.

The grease probably got so thick, from the cold, that it caused too much resistance for the auto-focusing mechanism. You probably have damaged the focusing mechanism in the lens. You cannot repair this, yourself. I don't know how cold is too cold but it really shouldn't have done that.... Tamron makes cheap lenses. Try and exchange it for at least a Sigma.

Posted on Dec 29, 2007


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The Tamron lens you have, does not have a built in motor and
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All of the Nikon DX (for digital) series lenses are also AF-S
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Other Nikon AF-S lenses made for film cameras (FX type)
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my suggestion is to always go with lens from camera maker.

sounds like there is an issue with the tamron lens. not the camera.
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