My 70-200 f4 L IS USM arrived a few days ago and I've been putting it through the paces, both on its own and against my other tele-zooms. This lens is terrific: tremendous IQ, best "IS" unit I've ever used, small size and relatively lightweight, takes a 1.4x admirably, and all at a bargain/basement price of ...
Anyway, you can view it's "arrival" to my place and also test shots here http://www.pbase.com/lightrules/70200f4lis![]()
FWIW, IQ is basically a wash against my 70-200 f2.8 IS. They are so close from 70mm all the way to 200mm, aperture for aperture (f4 and on). The new f4 lens, however, tends toward a warmer color tone while its "big brother" tends to render cooler images. But not much to write about really; it's not a significant difference.
IMO the new f4 IS is the closest thing to having your cake and eating it too. There really is nothing to fault about this lens (price? tripod collar not included?) If you're considering this lens, while it does cost a pretty penny, I am quite certain you won't regret the choice. Very Highly Recommended.
Here it is with my other telezooms:
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and I said, holy cow, look at the green and purple haloing...). Build quality is very sorry after I have become used to the premium glass.
