SHaller
TPF Noob!
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- Nov 8, 2010
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- #16
Everything I've researched about the 100-400mm says that 1.4TC performance with it is - debatable. Auto focus is mostly gone (actually unless you tape the pins or use a 3rd party none-reporting one its gone by default) and even in good light it will hunt a lot. Further the image quality hit, when combined with the loss of AF leaves many who find that its ok in a pinch, but its not a combo they reach to often to do shots with.
I still think however that for sports and wildlife the more expensive, 70-200mm f2.8 IS L M2 +2*TC (M2 or M3 work well and M2 is cheaper) is a better bet than going for the sigma 70-200mm f2.8 and the canon 100-400mm - you get a far better 70-200mm lens for the match and a pretty much equal quality 140-400mm lens for wildlife work (it also does rather well with dragonflies)
I know the issue with the autofocus with the tc, and i was willing to work around that since i wont need more than 400mm at most times. Aslo you say that 70-200 2.8 is mark 2. Is it that much of an improvement over that m1? $1000 dollars extra is quite a bit of $ to spend.
