> The optical system of the new lens is based on the current EF 70-
> 200mm f/2.8L USM and retains the same outstanding level of image
> quality, while adding a new high-performance Image Stabilizer
It will be interesting to see if this hold true. Chip Louie
confirmed the Photodo MTF numbers showing that the introduction of IS
to the 300/4 lens did detract from its image quality. But in that
case the optical system may have been redesigned.
Also interesting to note the added feature of rounded aperture blades
to f5.6. I wonder if Canon heard the complaints about the 100-400 IS
bokeh?
Dan
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