Canon 1.4X mk2 vs mk3 with Canon 300mm f2.8 mk II

Started Feb 18, 2014 | Discussions thread
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Martin_E
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Canon 1.4X mk2 vs mk3 with Canon 300mm f2.8 mk II
Feb 18, 2014

Hi All,
          I have a quick question for anyone who has experience with the same combination of Canon EF 300mm f2.8L mkII and Canon 1.4x mkII vs mkIII used with a 1D mkIV.

Would I see any improvment in focus speed between the mkII and mkIII 1.4x TC. I'm sure the quality is the same if not better but I'm mainly interested to know if the focus speed would improve, as I take a lot of BIF shots.

Regards,

Martin,

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