07-09-2010, 10:09 PM
I currently have a Nikon 18-70mm which isn't a bad lens at all. I have thought about upgrading to an f2.8 18-50mm lens. I am not impressed enough with the Nikon 18-55 f2.8-- it is good optically but its performance doesn't justify its price tag and it lacks VR. So I'm thinking about the Sigma 18-50 f2.8 OS.
The question is, is it enough of an improvement over the Nikon 18-70 to make it worth the upgrade???
The question is, is it enough of an improvement over the Nikon 18-70 to make it worth the upgrade???