Okay thinking about giving one of these lenses a whirl.

I've been reading and reading, comparing the Tamron 17-50mm, Tokina 16-55mm, Sigma 17-50mm and Sigma 17-70mm.


I've narrowed it down to deciding on the Sigma lenses (unless if you guys have opinions about the others?)

Now would it be worth looking in to getting the extra 20mm zoom (at a loss with the Aperture?).

This would be used as either a general lens or at events (like large family things, parties, etc).


I have an off camera flash which I'd be using at my disposal as well.