| Announced | 2009-03-01 |
| Indicative price (USD) | 200 |
| Aperture | f/2.8-4.5 |
| Focal range (mm) | 18 - 50 |
| Filter diameter (mm) | 67 |
| Max diameter (mm) | 74 |
| Mount type | Nikon F DX |
| Stabilization | Yes |
| AF Motor | HSM |
| Zoom type | Ring |
| Rotating front element | No |
| Tripod mount | No |
| Color | Black |
| Full-Time manual focus | Yes |
| Number of lenses | 16 |
| Number of groups | 12 |
| Diaphragm blades | 7 |
| Circular aperture | No |
| Length (mm) | 88.6 |
| Weight (gr) | 395 |





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Measurements for 4 additional lenses are now available, including the Sigma 18-50mm F2.8-4.5 DC OS HSM (Canon mount and Nikon mount). |