Highlighted rows differ between the two models.
| Specification | Canon EF 24-70mm f/2.8 L USM | Canon EF 70-300mm f/4-5.6 IS II USM |
|---|---|---|
| Mount | ||
| Mount | canon-ef | canon-ef |
| Optics | ||
| Focal (difference) | 24-70 mm | 70-300 mm |
| Aperture (difference) | f/2.8 | f/4.0-5.6 |
| Prime | No | No |
| Stabilization (difference) | No | Yes |
| Build | ||
| Weight (g) (difference) | — | 710,000 g |
Pick Model A if you need a brighter f/2.8 aperture for low-light shooting and a versatile 24-70mm range for general photography. Choose Model B if budget and reach are priorities, as its 70-300mm focal length and lower price suit telephoto needs—just accept the slower aperture and heavier weight.