17-70mm F2.8-4.5 DC OS Macro HSM C - Sigma (SA/SD)

The Sigma 17-70mm f2.8-4.5 is a large aperture standard zoom lens for digital SLR cameras. The lens is ideally suited for a wide variety of subjects and is designed specifically for digital SLR cameras featuring APS-C size image sensors. The super wide-angle capability of this zoom lens makes it ideal as an everyday large-aperture lens. In addition, the maximum magnification of 1:2.3 also enables close-up photography. DC lenses are exclusively designed for digital SLR cameras. The image circle (rear of lens) is made to match the smaller dimensions used for the image sensor on digital cameras. 

Lens Type: Macro Zoom
Focal length - wide (mm): 17
Focal length - tele (mm): 70

Max aperture – wide: 2.8
Max aperture – tele: 4.5
Minimum aperture: 22

Minimum focus distance (m): 0.2
Sensor Format: APS-C
Lens mount: Sigma SA

Lens elements: 15
Lens groups: 12
Aperture blades: 7

Filter thread (mm): 72
Size: 79 x 82mm
Weight (g) 455