I want to buy a macro lens as the next addition to my EOS kit (20D body, "L" lenses from 17 to 400 mm, all of them telephoto zooms). Obviously for the macro lens, I am choosing between the 60mm, 100mm and the 180mmL. I'm pretty much down to the latter two and am weighing the cost/size advantage of the 100mm against the optical superiority and greater working distance of the 180mm. Aside from soliciting general opinions and advice with this posting - I would be happy for any comments on this decision - I do have one specific technical question: What is the minimum distance from a subject that I can shoot with the 180mm? Canon's own site appears to say that 1.57 feet is the closest that I can be to get focus, but various reviews that I've read elsewhere suggest much less distance than that. Thanks for any insights from users of these lenses.