The title says it all really. Does anyone have any experience of using either the 180mm f2.8 or the 200mm f4 on µ4/3? I'm referring to the manual versions. I believe both lenses are pretty well regarded, but I'm particularly interested in the speed/weight/balance/DOF trade-offs... I'm also wondering about the Nikkor 100-300mm zoom - simply too big for µ4/3 or is it usable? I know at least one forumite uses one but for all I know he may be an Olympic basketball player or professional tag wrestler. Thanks in advance for your help!