Read Lloyd Chambers' brief report on the Canon EF 200mm f/2L IS USM telephoto lens. Lloyd writes:
Initial results look very impressive in terms of sharpness, flare control, bokeh, etc. The original 200mm f/1.8L had a great reputation, but this new 200/2L looks to be outstanding as well, and perhaps even better. Although Canon offers an aging 200mm f/2.8L II design, the 200/2L IS is easily superior.
He also cautions to "… never allow such a lens to hang off your camera’s lens mount unsupported".
The inclusion of two web-sized photos, a flower and street lights at dusk, give a glimpse of the lens' capabilities.