Douglas Herr , Aug 08, 2007; 08:54 a.m.
A 200mm lens is likely to be disappointing. If you're not averse to manual focus consider the Leica 400mm f/6.8, which can be easily adapted to fit your camera. It's very light. much quicker-handling than most manual-focus lenses and can produce excellent results. Canadian photographer David Young uses this exact combination of Canon 30D and Leica 400mm f/6.8 for many of his wildlife photos: http://www.telyt.com/