0 out of 10 points and recommendedshort and lightweightsee below
Just bought this new, and having focus searching problem on my Sigma f2.9 70-200HSM. Will not stop searching. Does not do this with my other 'shorter' zoom - Nikon 18-79, Sigma 24-135, & Tamron17-50.reviewed September 1st, 2007
anyone know - what's up??