| Name |
Sigma 17-70mm f/2.8-4.5 DC Macro |
| Image Circle |
APS-C |
| Type |
Standard Zoom |
| Focal Length |
17 - 70mm |
| APS Equivalent |
1.5x: 25.5 - 105mm; 1.6x: 27.2 - 112mm |
| Max Aperture |
f/2.8 - 4.5 |
| Min Aperture |
f/22 |
| Diaphragm Blades |
7 |
| Lens Construction |
15 elements in 12 groups, including 1 SLD and 2 aspherical elements |
| Diagonal Angle of View(Based on image circle) |
72.4 to 20.2 degrees |
| Focus Details |
Internal |
| Front Element Rotation |
No |
| Zoom System |
Rotary with lock |
| Closest Focus |
20cm / 7.9 in.(Much closer? See Test Notes.) |
| Magnification Ratio |
0.43x / 1:2.3 |
| Filter Size |
72mm |
| Dimensions(Length x Diameter) |
82.5mm x 79mm / 3.2 in. x 3.1 in. |
| Weight |
455g / 16 oz |
| Notes |
Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax |
| Typical Online Price |
US$390 |
