new Sigma 120-300 f/2.8 again? But now with weather sealing for sports?

Started Jan 7, 2013 | Discussions thread
MICHAEL_61
Senior MemberPosts: 2,127
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Re: Hi MICHAEL_61
In reply to Amateur Sony Shooter, Jan 12, 2013

Canon Mark III

Amateur Sony Shooter wrote:

which 2xTC are you using? I am using Sigma version, I found it sharper than Canon 2x II, but I haven't tried 2x III. I need to stop down to F8 to get good sharpness (F7.1 is slightly worse than F6.3) thus limiting its use (too high ISO required for min. 1/1000 shutter handheld).

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