Auto focus problem (by 2 users)
posted by LCarlsson on Dec 24, 2007
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?
Comment by LCarlsson, posted on 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!
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!
Comment by LCarlsson, posted on 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!
1 Other User Has The Same Problem
Comment by BBoogie, posted on 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.
Best Solution
posted on Dec 29, 2007
WizMy 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.
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.
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