Quote Originally Posted by neuroanatomist View Post
The 100L Macro is very versatile - besides the macro capability, it makes a good portrait lens on either sensor format. Its AF is a bit slower, so it's not ideal for shooting action. Obviously if you need to shoot 1:1 macro, it's the only choice...
I think the OP was asking about the non "L" version. I also have the "L" version and like it, but have no experience with the non-L lens. I hear it is good, but does lack IS if that is important to you.