Amazon.com : Sigma 17-70mm f/2.8-4 DC Macro OS HSM Contemporary Lens for Nikon F (884306) with Bundle Package Kit Includes: Pro Series Monopod, 3PC Filter Kit + More : Camera & Photo
Nikon 16-80mm vs Sigma 17-70mm: Which Lens is Better? - YouTube
Sigma 17-70mm f/2.8-4 DC Macro HSM Contemporary Lens 884109 B&H