Quote Originally Posted by Tack Sharp View Post
If I chose the 70-300, am I going to regret not having the f/2.8? and if choose the 70-200 am I going to regret the extra reach and the IS?
Shooting with anything other than an f2.8 zoom pretty much always makes you regret not having the f2.8 option. But shooting the 70-200 f2.8 in many general purpose situations will make you regret not having a smaller, lighter lens with IS. And 200mm vs 300mm is a huge difference. Lens choices are always about compromise, but I personally wouldn't compromise on the IS.

If you are mostly looking for a general purpose zoom, then I wouldn't hesitate to go for the 70-300 L. But again, I'd consider the 70-200 f4 L IS too. In that comparison, the only relevant question is about focal length: do you really want/need the extra 100mm. I did, so that drove my decision.

Good luck!