pigpen wrote:
I own the non "L" version of the 100mm f/2.8 macro, and I love it. It is 1/2 the price of the "L", about $550. If you plan on tripod use, you will not need the IS. Once in a while (handheld) i wish I had the IS, but the image quality of the "L" version can't be that much better, it is that sharp. I think the extra cost is for the IS, not glass quality.
I'll second that. I'm a principally a Nikon shooter but we do use Canon and that lens is great.