Recently, I have been using my Canon 24-70 2.8L quite often because of its versatile focal range. The lens is great, but the only drawback is that it is on the heavy side ... it weighs in at 33.6 oz, which is hair over two pounds! By far the heaviest lens I have. Quite frequently when my camera is not in use, or in my hand, it is slung across my body with the neck strap, and the camera body with lens attached just hangs. I haven't been doing that with the 24-70 mounted because I am afraid it might be too heavy for the camera? Maybe I am not giving the sturdiness of the camera body (40D) sufficient credit? Should this be a concern for me [or, would this worry you, if you were me]? I know the camera mount where the lens comes in contact and locks to the body is strong but, I was just curious for some others feedback. Then again, I have seen some people with a Canon 70-200 2.8L IS mounted to a camera body slung over their shoulder without any worry at all. And the 70-200 2.8L IS weighs in at 44 oz. (or something like that). Thoughts always welcome!