Sigma 120-300 2.8 with Sigman or Canon 2x TC

Started Sep 21, 2012 | Discussions thread
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Tim Clifton New Member • Posts: 1
Sigma 120-300 2.8 with Sigman or Canon 2x TC

I am serioiusly considering the Sigma 120-300 2.8 OS. Has anyone got a comparision using the Sigma 2x TC and the Canon 2x TC version III. I would love to hear if anyone has used the new version of Canon 2x TC versus the Sigma 2x tC.

Any feedback would be greatly appreciated, and thanks for your time
Tim

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