11-15-2012, 01:17 PM
Well, the appeal of 24-xx zooms is that if you have FF *and* crop cameras, it will be perfectly usable on both, while 35-xx would be pretty useless on crop. I have the aforementioned 24-85mm VR, and while it's definitely not the sharpest lens on FF, on D300 it behaves surprisingly well - really can't complain about the corners @ f/5.6.