Sigma 120-400mm F4.5-5.6 APO DG OS Unboxing/OS /AF Test - YouTube
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 120-400mm f/4.5-5.6 DG OS HSM APO For Nikon F Mount Cameras | eBay
Used Sigma 120-400mm f/4.5-5.6 APO DG OS HSM - Nikon Fit | MPB