| Attribute | Value |
|---|---|
| Lens Construction | 12 elements in 11 groups, including 1 aspherical element |
| Diameter | 77 mm |
| Zoom System | Rotary |
| Diagonal Angle of View | 23.30 - 75.40 degree |
| Aperture | 2.80 - 22.00 f |
| Notes | Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax |
| Filter Size | 72 mm |
| Magnification Ratio | 0.18 x |
| Closest Focus | 0.5 m |
| Focus Details | Internal focusing |
| Length | 81 mm |
| Diaphragm Blades | 8 |
| APS Equivalent | 1.5x: 42 - 157.5mm; 1.6x: 44.8 - 168mm |
| Focal Length | 28.00 - 105.00 mm |
| Image Circle | 35mm |
| Brand | Sigma |
| Name | Sigma 28-105mm f/2.8-4 DG |
| Weight | 405 g |
| Type | Standard Zoom |
| 35mm Equivalent | Add |
| Effective Reduction in Aperture | Add |
| Focal Length Multiplier | Add |
| APS-C Equivalent | Add |
| Diaphragm Blades Type | Add |
| Front Element Rotation | Add |