Sigma 17-70mm F2.8-4 DC OS HSM C is an Auto Focus (AF) Standard Zoom lens with APS-C / DX max sensor coverage and it is designed to be used with Nikon F (DX) mount lenses.
Lens Mount
Sigma 17-70mm F2.8-4 DC OS HSM C is compatible with cameras that have Nikon F (DX) lens mount.
Sensor Coverage
Max sensor coverage of Sigma 17-70mm F2.8-4 DC OS HSM C is APS-C / DX.
Focal Range
Sigma 17-70mm F2.8-4 DC OS HSM C has a focal range of 17-70mm and 4.1X zoom ratio. When mounted on a APS-C / DX format camera, it provides an 35mm (FF) equivalent of 25.5 - 105mm.
Optical Image Stabilization
Sigma 17-70mm F2.8-4 DC OS HSM C features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.
Zoom Method
Rotary (extending)
Aperture
Sigma 17-70mm F2.8-4 DC OS HSM C has a max aperture of f2.8 at 17mm and max aperture of f4 at 70mm .