 | |
| Maker | Sigma |
|---|---|
| Technical data | |
| Type | Telephoto zoom |
| Focus drive | Ultrasonic motor |
| Focal length | 120-400mm |
| Crop factor | 1.0 |
| Aperture (max/min) | f/4.5-5.6-f/22 |
| Close focus distance | 150cm |
| Max. magnification | 1:4.2 |
| Diaphragm blades | 9 |
| Construction | 21 elements in 15 groups |
| Features | |
| Short back focus |  No |
| Lens-based stabilization |  Yes |
| Macro capable |  No |
| Physical | |
| Max. length | 203.5mm |
| Diameter | 92.5mm |
| Weight | 1640g |
| Filter diameter | 77mm |
| Retail info | |
| MSRP | $852.33 USD |
The Sigma APO 120-400mm F4.5-5.6 DG OS HSM lens is a super-telephoto lens produced by Sigma Corporation. It contains three SLD (Special Low Dispersion) glass elements to provide correction for chromatic aberration. It is aimed toward advanced consumers.