Highlighted rows differ between the two models.
| Specification | Nikon AF-S DX Nikkor 18-135mm f/3.5-5.6G IF-ED | Sigma 15-30mm f/3.5-4.5 EX DG - Monture Nikon |
|---|---|---|
| Mount | ||
| Mount | nikon-f | nikon-f |
| Optics | ||
| Focal (difference) | 18-135 mm | 15-30 mm |
| Aperture (difference) | f/3.5-5.6 | f/3.5-4.5 |
| Prime | No | No |
| Stabilization | No | No |
Pick Model A if you need a versatile all-in-one zoom for everyday shooting, travel, or situations where you want to cover wide-angle to short telephoto without swapping lenses. Model B stays the better choice if your priority is ultra-wide-angle coverage (15 mm) and you can accept the limited 30 mm long end, especially for landscapes or tight interiors.