Sigma 17-50mm f/2.8 EX DC OS HSM Zoom Lens for Nikon DSLRs with APS-C Sensors
For Nikon DSLRs with APS-C Size Sensors
4 Stops of Anti-Shake (OS) Compensation
Aperture of f/2.8 throughout Zoom Range
Accepts 77mm Filters
Ultra Compact (Only 3.6", 91.8mm Long)
Multi-Layered Lens Coating
Excellent Correction for Aberrations
Hyper-Sonic Motor for Quiet/Fast AF
Close Focusing Distance of 11" (28cm)
Weighs Only 19.9 oz (565 g)