Highlighted rows differ between the two models.
| Specification | Nikon AF-S Nikkor 70-200mm f/4G ED VR | Sigma 50-500mm f/4.5-6.3 APO DG OS HSM - Monture Nikon |
|---|---|---|
| Mount | ||
| Mount | nikon-f | nikon-f |
| Optics | ||
| Focal (difference) | 70-200 mm | 50-500 mm |
| Aperture (difference) | f/4.0 | f/4.5-6.3 |
| Prime | No | No |
| Stabilization | Yes | Yes |
Pick Model A if you prioritize a constant f/4 aperture, lighter weight, and sharper results within the 70-200mm range at a lower price. Model B stays the better choice if you need the extreme 500mm reach and wider 50mm starting point, accepting the variable aperture and higher cost.