Sigma 105mm f/2.8 EX DG lens
 | |
| Maker | Sigma Corporation |
|---|---|
| Technical data | |
| Focal length | 105mm |
| Aperture (max/min) | f/2.8 - f/45 |
| Close focus distance | 31.3 cm. |
| Max. magnification | 1:1 |
| Diaphragm blades | 8 |
| Construction | 11 elements in 10 groups |
| Features | |
| Short back focus |  No |
| Lens-based stabilization |  No |
| Macro capable |  Yes |
| Application | Macro |
| Physical | |
| Max. length | 97.5 mm. |
| Diameter | 74 mm. |
| Weight | 460 g |
| Filter diameter | 58 mm |
| Retail info | |
| MSRP | $640 USD |
The Sigma 105mm f/2.8 EX DG is a macro lens produced by Sigma Corporation. The lens has six different variates, fitting on the Sigma SA mount, Canon EF mount, Four Thirds System, Pentax K mount, Minolta A-mount, and the Nikon F-mount.[1][2]