Highlighted rows differ between the two models.
| Specification | Nikon AF-S DX Nikkor 55-200mm f/4-5.6G IF-ED VR | Sigma 18-200mm f/3.5-6.3 DC OS HSM - Monture Nikon |
|---|---|---|
| Mount | ||
| Mount | nikon-f | nikon-f |
| Optics | ||
| Focal (difference) | 55-200 mm | 18-200 mm |
| Aperture (difference) | f/4.0-5.6 | f/3.5-6.3 |
| Prime | No | No |
| Stabilization | Yes | Yes |
Pick Model B if you need a wider starting focal length (18mm vs 55mm) and a brighter maximum aperture at the wide end (f/3.5 vs f/4), making it more versatile for landscapes and low-light situations. Model A stays the better choice if you prefer a slightly more compact lens and don’t need the extra wide-angle reach, though the difference in practical use will be minimal at the telephoto end. Both share the same price and 200mm telephoto limit, so the decision hinges on your need for wide-angle flexibility.