That's interesting, I would have put money on the 28-70 being used more than the 17-35... just goes to show
I know this will depend on what you shoot but it would be intesting to see the results
I love my Canon 600mm F4 is
My wife and I just got a 50/1.2 L and I love it, can be difficult to get the perfect shot but amazing results when you get it right.
Mike
but could probably be persuaded to part with my old 180 f/2.8!
That's one lens I've always wondered about...
canon 50mm 1.8 II