Tamron SP AF 180mm f3.5 LD (IF) Di Macro 1:1 (Nikon). Lens structure (elements/groups): 14/11, Focal length range (f-f): 180 mm, Closest focusing distance: 0.47 m. Filter size: 72 mm, Weight: 0.92 kg. Colour of product: Black. Dimensions (WxDxH): 84.8 x 84.8 x 165.7 mm