Highlighted rows differ between the two models.
| Specification | Canon EF 24-105mm f/4 L IS USM | Tamron SP 24-70mm f/2.8 Di VC USD G2 - Monture Canon EF |
|---|---|---|
| Mount | ||
| Mount | canon-ef | canon-ef |
| Optics | ||
| Focal (difference) | 24-105 mm | 24-70 mm |
| Aperture (difference) | f/4.0 | f/2.8 |
| Prime | No | No |
| Stabilization | Yes | Yes |
| Build | ||
| Weight (g) (difference) | — | 905,000 g |
Pick Model A if you need the extra reach to 105 mm and can accept the one-stop slower aperture. Model B stays the better choice if you prioritize a brighter f/2.8 aperture and lower cost, and the 70 mm tele end is sufficient for your needs.