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Author Topic: Really, I did a Google search and came up with nada  (Read 1530 times)

crasher8

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Really, I did a Google search and came up with nada
« on: February 26, 2013, 09:12:51 PM »
5d3, Tamron 70-200 2.8 VC.

Can I use a Canon 1.4 TC III with this lens?

 I cannot find out if Canon tc's are compatible with 3rd Party EOS lenses anywhere. Of course there's a grundle of info about 3rd party TC's on Canon lenses.

Thanks

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Really, I did a Google search and came up with nada
« on: February 26, 2013, 09:12:51 PM »

neuroanatomist

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Re: Really, I did a Google search and came up with nada
« Reply #1 on: February 26, 2013, 10:49:52 PM »
I think it is, at least physically.  Looking at the rear of the lens, the rear element is recessed a decent distance into the barrel, so there should be room for the protruding front of the Canon 1.4x TC.  The ISO 12233 crops on TDP show it with a 1.4x and 2x TC, and I think Bryan uses only Canon TCs (he didn't have a Kenko, last time I asked, but maybe he has a Tamron one?).  But I don't think it will report correctly - the Tamron mount doesn't have the extra contacts that Canon's TC-compatible lenses have.
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traveller

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Re: Really, I did a Google search and came up with nada
« Reply #2 on: February 27, 2013, 02:48:17 PM »
I had the original (Tamron 70-200 "Macro") for a while and it definitely wasn't compatible with the Canon 1.4x teleconverter that a mate of mine owned (rear element collision).  I can't speak for the new one, but I'd want to test the combo out before buying. 

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Re: Really, I did a Google search and came up with nada
« Reply #2 on: February 27, 2013, 02:48:17 PM »