Are these two optically identical? Looking for a cheap walkaround for my Rebel, my mother has one on her T3 and I was impressed, it looks a bit sharper than my old 18-55 when I first got my Rebel.
I'd go with the 17-85, 15-85 etc. if I was using a crop as a primary but I'm not and my Rebel is mostly for club gigs and bands and stuff, not using $3000 worth of gear for a 50 or 100-dollar gig full of drunkards. 




