Highlighted rows differ between the two models.
| Specification | Sigma 70-300mm f/4-5.6 DG Macro - Monture Canon EF | Tamron AF 75-300mm f/4-5.6 LD Macro - Monture Canon EF |
|---|---|---|
| Mount | ||
| Mount | canon-ef | canon-ef |
| Optics | ||
| Focal (difference) | 70-300 mm | 75-300 mm |
| Aperture | f/4.0-5.6 | f/4.0-5.6 |
| Prime | No | No |
| Stabilization | No | No |
Pick Model A if you want the wider 70 mm starting focal length and the lowest cost—its 40 mm extra reach at the wide end and €40 savings make it the practical choice for tight spaces and budget-conscious buyers. Model B stays the better choice if you specifically need the 75 mm minimum focal length or prioritize the slightly more compact filter size (58 mm vs. 55 mm) and marginally lighter weight (435 g vs. 550 g). Both share identical maximum aperture and macro capability, so neither gains an optical edge from the specs provided.