Sigma 17-50mm f/2.8 EX DC OS HSM (FLD) Autofocus APS-C Lens for Select Nikon F-Mount Cameras {77} at KEH Camera
Sigma 18–50mm f/2.8 EX DC Macro lens - Wikipedia
Sigma 17-50mm F/2.8 Ex Dc Os Hsm Lens For Nikon - Camera Lenses - AliExpress
Sigma 17-50mm F/2.8 EX DC HSM OS (FLD) EF Mount Lens For Canon APS-C Sensor DSLRS {77} - Used SLR & DSLR Lenses - Used Camera Lenses at KEH Camera at KEH Camera
Sigma 17-50 2.8 OS HSM - All-around very good lens: Third Party Lens Talk Forum: Digital Photography Review
Sigma Zoom 17-50mm 1: 2.8 EX DC OS HSM Review | Happy