SIGMA 17-50mm f/2.8 EX DC OS HSM for Nikon

The Sigma 17-50mm f/2.8 EX DC OS HSM is a zoom lens for Nikon. The wide-angle lens design makes it an appropriate and powerful tool for both indoor and outdoor use. It was designed for use with digital SLR cameras. Its advantages include a high aperture of f/2.8 throughout the entire zoom range, optical stabilisation and accurate and fast HSM - Hyper Sonic Motor focus.
Specifications:
Optical construction:17 elements in 13 groups
Viewing angle:
72.4° - 27.9°
Minimum aperture:
22
Minimum focusing distance:
28cm
Max. display ratio:
1:5.0
Filter diameter:
77mm
Size:
83.5 x 91.8mm
Weight:
565g