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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Posted on Jan 02, 2017
SOURCE: will not autofocus
According to the manufacturer the first thing you should try is cleaning the lens contacts with an eraser. If that doesn't work you could try removing the battery and reinserting it to reset the camera. It seems to me that if there was a compatibility issue going on you should have seen that from the start. As far as what lens you should buy both Tamron and Canon make very good lenses, but with Canon lenses you shouldn't ever have compatibility issues. I hope this helps!
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Posted on May 23, 2008
Try gently cleaning the electronic contacts on the lens's mount with an eraser. This will remove any mild oxidation on the contacts. If this doesn't resolve the problem, then contact Tamron and ask if there are any issues using this particular lens with a Canon 40D.
Posted on Apr 21, 2009
SOURCE: Detaching Lens Hood
I'm not sure of the exact model number of your lens, but the hood should have a bayonet flange and rotating it in one direction or the other should allow it to then simply pull off.
Posted on Apr 21, 2009
Hi turn on the camera with the lens on set to tv and a iris of f22 and use the stopdown button if the lens stops down the lens is ok if not the lens is faulty may need a intuper replaced
Posted on Jan 11, 2010
Testimonial: "Many thanks for your help with this problem. What is a Intuper? I have never heard of this before."
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