I'd like to buy a 70-200f2.8 but I'm wondering if IS is necessary?
I will be using the lens in a variety of situations, from walk around to indoor and outdoors sports like football, basketball, and ice hockey.
What I can't quite get my head around is the advantage of IS, particularly when shooting sports or any other time I am shooting outdoors? With the sports, like a basketball game, I figure I'd need to use 1/250 or 1/500 as a shutter speed which pretty much renders IS useless if I am thinking correctly?
With that in mind and a budget of $ 1500.00 which lens would you folks recommend from the following list, and why would you recommend it? IE -it's sharper wide open, it's lighter, it's better built, etc.
Here are my potential choices. I welcome your suggestions.
Sigma 70-200f2.8 OS HSM
Tamron 70-200f2.8 VC