The AF is supposed to be slower than the two ring. Optically they are similar if not the same. Yes, it is certainly worth it.http://cincinnati.craigslist.org/pho/2400682537.html
350 for this lens ive seen em go used for well over 350 but for the push pull version would it be worth it?
yup. optically, they are superb.ahh sweet optically would it be in the same field as the 70-200 2.8?
Yes and no. In the corners, both 70-200 f/2.8's are far superior. As far as AF both 70-200's are in a different league, in low light the 70-200 will lock on focus better and hunt alot less, not to mention AF speed. Supposedly all versions (at least I think all versions) of the 80-200 are a little soft at 200mm. I have never noticed this on mine.ahh sweet optically would it be in the same field as the 70-200 2.8?