Recommendation for TC 1.4x (70-200 f/4L IS)

Started Sep 7, 2010 | Discussions thread
OP glb2007 Regular Member • Posts: 233
Canon Extender II vs Kenko PRO DG 300


I haven't bought the TC yet (waiting to place order at BH Photo).

Now I was wondering how much focus speed I would loose with the Canon Extender II 1.4x? Is it still usable for sports and wildlife? (Switching the focus dist limit to 3m to infinite).

How does IQ and connection between lens and body compare to Kenko PRO DG?

Tks in advance.

 glb2007's gear list:glb2007's gear list
Canon EOS 7D Canon EF 50mm f/1.8 II Canon EF 85mm f/1.8 USM Sigma 17-50mm F2.8 EX DC OS HSM Canon EF 70-200mm f/4L IS USM
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