09-19-2011, 06:00 PM
15-85, without a doubt.
The 24-105 is the standard zoom for full-frame gear. It'll work on a 60D but it'll be much less useful that the 15-85, which has been designed with cameras like 60D in mind.
The 24-105 is the standard zoom for full-frame gear. It'll work on a 60D but it'll be much less useful that the 15-85, which has been designed with cameras like 60D in mind.