Used Sigma DC EX HSM 17-50mm | Nikon F | U8

The Sigma 17–50mm f/2.8 EX DC OS HSM is a fast standard zoom designed specifically for APS-C DSLR cameras. Its constant f/2.8 aperture makes it particularly useful for available-light photography, events, portraits, and video work where maintaining exposure while zooming is important. The 17–50mm range covers everything from wide-angle compositions to short telephoto perspectives, making it an excellent general-purpose lens. Sigma's Optical Stabilizer can provide approximately four stops of additional handheld capability on compatible versions, while the HSM autofocus motor provides fast and quiet focusing. The lens also focuses as close as 28cm throughout its zoom range and uses FLD glass and aspherical elements to improve optical performance. Overall, it remains one of Sigma's more practical APS-C constant-aperture zooms, particularly for photographers who want a relatively compact f/2.8 lens without moving to a full-frame system.