| APO 120-400mm F4.5-5.6 DG OS HSM[1] | |
| Maker: | Sigma |
| Feat-Is: | y |
| Focusdrive: | Ultrasonic motor |
| Feat-Sbf: | n |
| Feat-Macro: | n |
| Type: | Telephoto zoom |
| Flength: | 120-400mm |
| Fov: | 1.0 |
| Aperture: | 4.5-5.6-22 |
| Groups: | 15 |
| Elements: | 21 |
| Diaphragm: | 9 |
| Close-Dist: | 150cm |
| Max-Mag: | 1:4.2 |
| Weight: | 1640g |
| Max-Diameter: | 92.5mm |
| Max-Length: | 203.5mm |
| Filter: | 77mm |
| Msrp: | $852.33 |
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.