Tamron trouble

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floating_stump Junior Member • Posts: 43
Tamron trouble

I'm having a problem with my Tamron 16-300mm. It has trouble focusing sometimes. It will not autofocus at all when at full extension. And it occasionally won't focus, at other focal lengths.

Has anyone else had this problem? How uncommon is it for Tamron or any lens? Can it be fixed? I've only had it a couple of years, and it started happening about a year in.

I updated my camera's firmware (Canon T5i) and there was no change.

My wife has a Canon 77D, so I switched lenses. My 16-300 has the same problem on her camera. Her 18-400mm on my camera performs OK, but not great. It takes moment to find the focus. Longer than it seems like it should.

Any thoughts?

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