Too much for Rebel comfort.

I was shooting with this lens and a Rebel XT and wasn't having a lot of fun doing it. I also own the wonderful L-Series 24-105 and this same thing holds true.

What I discovered was the Rebels are really not meant to hold these lenses, at least in the hands of most males. The body of a Rebel is just out of balance with this lens.

It a great lens in overall build quality, flexibility, and photo quality. In fact, even though its price is probably more than many beginners were expecting to pay, this lens really will be a good value, if for no other reason, for its flexibility.

BUT, now that I am using it on a 40D is when I realized the true beauty and sophistication of the moderately-priced lens. This is basically the "prosumer" canon lens and it deserves a body with just a bit more heft than a Rebel can provide.

My advice, buy this lens and then upgrade your Rebel to match, or love your Rebel as it is (a wonderful camera!) and find yourself yearning for a camera upgrade soon after you receive it.