tonyjag wrote:
I just bought one to use as a walkaround lens on my D90 and am happy with it so far. It seems to work as well as my Nikon 16-80mm. My Sigma 50-500 is overkill in most applications and is quite big and heavy. Both of these Sigma telephoto zoom lenses have zoom rings that operate in the opposite direction of Nikon and Sigma 8-16. Otherwise, they are great.
I have one on my D90 for a walk around lens as well. Love it. I also use a Kenco 1.4 telextender quite a lot of time. No problem there. Have not had a lens creep that some people have written about. Replaced my Nikkor 70-300 that my wife decided to appropriate. I have a battery pack on the D90 also and the whole thing is not too heavy for this old man. Also I use a wrist strap instead of the neck strap that I also carry in the back pack for monopod use. :thumbup: