Sigma's versatile DX standard zoom for Nikon — the 17-70mm f/2.8-4 Contemporary with OS.
The Sigma 17-70mm f/2.8-4 DC Macro OS HSM Contemporary for Nikon F is the same versatile APS-C zoom described in Pentax K (ID 3830) and Sony A (ID 4007). Covering 25-105mm equivalent with fast f/2.8 start, macro mode, OS stabilisation, and HSM quiet AF. The Contemporary designation indicates compact quality design.
Optical performance is good. Centre sharpness is very good at wider focal lengths. The f/2.8 starting aperture provides brighter viewfinder and DOF control beyond kit zooms. OS stabilisation provides approximately 4 stops. HSM motor is fast and quiet with full-time manual override. The macro mode allows genuine close-up work. A well-rounded everyday zoom.
Nikon F mount, APS-C. Filter thread is 72mm. Weight is approximately 470 grams. Build quality is good Contemporary tier. No weather sealing. The 25-105mm equivalent range covers the vast majority of shooting situations. The combination of fast start, OS, HSM, and macro in one compact package represents excellent everyday value.
Available at reasonable prices. Check OS motor and AF accuracy. One of the best everyday APS-C zooms for Nikon DX shooters — the fast start, stabilisation, quiet AF, and macro mode in one lens is hard to beat. The Contemporary build is solid. A genuine step up from any Nikon kit zoom.