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| p.1 #4 · 70-200 2.8 IS II w/2x vs100-400 |
I like 100-400 better particularly for BIF photography, although 4 stop IS in 70-200 f/2.8 IS MkII does help. The older zoom IQ is just a bit better corrected (bokeh, specular highlights, busy background blur) and a bit sharper. Also, 100-400 is no AF speed demon, yet it does focus faster/better than 70-200 f/2.8 IS MkII + 2xTC.
Mind you, the new zoom alone is an exceptional lens, and that factor might swing one away from 100-400, if you can make just a little allowance for IQ drop, and if you are not into photographing action at 400mm.
In fact, 100-400 does make a pretty decent BIF lens in very good light, despite its slowness (both aperture and AF drive), on all but the fastest of birds.
Edited on Apr 04, 2012 at 01:01 PM · View previous versions