Sigma 17-50mm f/2.8 EX DC OS HSM vs Sigma 18-50mm f/2.8-4.5 DC OS HSM
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Sigma 17-50mm f/2.8 EX DC OS HSM goes wider (17mm vs 18mm).
| Spec | 17-50mm f/2.8 EX DC OS HSM | 18-50mm f/2.8-4.5 DC OS HSM |
|---|---|---|
| Brand | Sigma | Sigma |
| Mount | Sigma SA | Sigma SA |
| Type | Zoom | Zoom |
| Focal length | 17-50mm (wider) | 18-50mm |
| Max aperture | f/2.8 | f/2.8 |
| Blades | 7 | 7 |
| Format | aps-c | n/a |
| Groups | 13 | 12 |
| Af motor | HSM | n/a |
| Elements | 17 | 16 |
| Weight g | 565 | n/a |
| Filter mm | 77 | 67 |
| Length mm | 91.8 | n/a |
| Stabilized | Yes | n/a |
| Diameter mm | 83.5 | n/a |
| Min focus m | 0.28 (closer focusing) | 0.3 |
| Max magnification | 0.2 | 0.25 |
Sigma 17-50mm f/2.8 EX DC OS HSM
This 17-50mm f/2.8 APS-C fast standard zoom lens from Sigma fits Sigma SA mount cameras, with Optical Stabilizer and Hyper Sonic Motor autofocus. A bright standard zoom for APS-C cameras with a constant f/2.8 aperture.
Sigma 18-50mm f/2.8-4.5 DC OS HSM
A 18-50mm f/2.8-4.5 APS-C standard zoom lens, the Sigma 18-50mm f/2.8-4.5 DC OS HSM is designed for Sigma SA mount bodies, with Optical Stabilizer and Hyper Sonic Motor autofocus. The range covers everything from wide scenes to portraits, so it works as a general-purpose lens.