Grabbed a Sigma 120-400mm APO DG OS lens - Beginning Deep Sky Imaging - Cloudy Nights
Amazon.com : Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM Telephoto Zoom Lens for Nikon Digital SLR Cameras : Digital Slr Camera Lenses : Electronics
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 APO DG OS HSM Nikon Fit Lens | eBay
N.MINT Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM Telephoto Zoom Lens from Japan | eBay
Sigma 120-400mm f/4.5-5.6 APO DG HSM OS Autofocus Lens for Nikon {77} at KEH Camera