Sigma APO DG 170-500mm f/5.0-6.3 Zoom Lens for Nikon DX & FX PLEASE READ
NOTE IF YOU'RE UNFAMILIAR WITH THIS MODEL THE LENS DOES SUFFER BADLY FROM ZOOM CREEP. Note with regard to autofocus the lens is not compatible with Nikon's D40 D40X D60 D3000 D3100 D3200 D3300 D3400 D3500 D5000 D5100 D5200 D5300 D5500 D5600.