ey believe me i like canon as much if not more than the next guy but the 18-200 OS is my MOST used and most satisfied sigma lens ive ever owned
(and ive gone thru quite the line up already).
and i have ALL the canon f2.8 and f4 zooms worth mentioning and most of the prime lenses for studio work. so i think that says quite a bit bout this lens.
now if you ask me will i get the canon...
well since i can afford it, il probably will...so i can personally test it hehehe.
will it replace my sigma...that would be a big question mark hehehe...if it proves to be that much of a benifit over the sigma, why not

but the sigma does fairly well with macro and its OS is just superb. if canon can beat that, then its a yes
