Canon 70-200mm f/2.8

[Dallasphotog]

It may help you a bit inside. I use the IS version for weddings and it lets me get the shutter down to 1/60 sometimes a tad slower. You won't be disappointed, the EF70-200mm f/2.8 is a great lens.

[mattsartin]

i think if its between IS and another lens, i'd go with abother lens 11 times out of 10. i'm not knocking IS, its great and if you could afford both it'd be good. but i don't think it fits your needs to much, which 100mm are looking at getting?

[donnman]

Im thinking about the Canon EF 100mm f/2.0 USM Lens.