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| Re: 70-200 f/2.8L IS MK II + 1.4X II TC |
Reno, you obviously need to do a bit of AF calibration touchup in order to get maximum sharpness out of your images.
I have tried both 1.4xTC MkIII as well as 2xTC MkIII on 70-200 f/2.8 IS MkII, and the resulting combos have a very good IQ. In fact, the 1.4xTC based combo practically eliminates the need for a 300 f/4 prime.
Here are two shots with 70-200 f/2.8 IS MkII + 1.4xTC MkIII, done on 1DsMkII, about 50% crops.