Sigma apo 50 500mm f45 63 dg os hsm lenses nikon mount
Sigma apo 50 500mm f45 63 dg os hsm lenses nikon mount
Sigmas apo 50 500mm f45 63 dg os hsm is an advanced optical design of this 10x power high performance zoom lens that covers the standard to super telephoto range now with the added advantage