Manufacturer description: The Sigma 17-50mm F2.8 EX DC OS HSM is a useful large-aperture standard zoom lens designed exclusively for APS-C format digital SLRs. Covering a focal range of approximately 25-75mm, the 17-50mm features OS optical stabilization, và a HSM ultrasonic-type focus motor. With a minimum focusing distance of 11 inches throughout the entire zoom range this lens offers a useful semi-macro close up capability, for a maximum reproduction ratio of 1:5.
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| Zoom lens |
| 17–50 mm |
| Yes (4 stops claimed) |
| Canon EF-S, Nikon F (DX), Pentax KAF3, Sigma SA Bayonet, Sony/Minolta Alpha DT |
| F2.8 |
| F22 |
| 0.28 m (11.02″) |
| 0.2× |
| 565 g (1.25 lb) |
| 92 mm (3.62″) |
See full specifications
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