Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Review
Am I hearing things? Today I recv'd this Sigma 120-400mm 1:4.5-5.6 APO DG OS HSM lens with a Nikon mount. When in AF mode I can hear what I think are gears
Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Lens 729955 B&H