Question about Tamron 200-500mm f/5-6.3 Di LD IF Lens
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Posted on Jan 02, 2017
Both, But start at the rear to remove the electronics and the outer barrels. Remove any rubber grip to expose 'hidden screws'. I would mark everything or document with pictures during disassembly.
Posted on Jan 29, 2008
You didn't supply what kind of Tamron lens it is. I'm gonna go ahead and give it my best shot on a guess: Tamron 28-75mm f/2.8 XR Di LD Aspherical (IF).
If I'm correct, you can download the manual here: http://www.tamron.com/assets/pdfs/A09.pdf
Hope this helps!
Posted on Jan 19, 2009
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: dirt inside back lens element
The dirt has gotten onto the front element of the rear lens group. You do not want to try partially disassembling the lens to clean it. Either Tamron or a good camera lens repair technician should be able to perform what is called a partial internal CLA (cleaning, lubrication and adjustment) of just rear portions of the lens for fairly cheap. Alternatively you may be able to pick up a used Tamron 28-200 in excellent condition for less than the repair cost of your current lens. If successful, then you could turn around and sell your 28-200 for parts or sell it to someone who knows how to service it.
Posted on Aug 14, 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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