Highlighted rows differ between the two models.
| Specification | Canon EF 24-70mm f/2.8 L USM | Canon EF 70-200mm f/4 L IS USM |
|---|---|---|
| Mount | ||
| Mount | canon-ef | canon-ef |
| Optics | ||
| Focal (difference) | 24-70 mm | 70-200 mm |
| Aperture (difference) | f/2.8 | f/4.0 |
| Prime | No | No |
| Stabilization (difference) | No | Yes |
Pick Model A if you need a versatile wide-to-short-tele zoom with a brighter f/2.8 aperture for low light or shallow depth-of-field. Choose Model B if your work demands longer reach (70-200mm) and built-in stabilization at a slightly lower price, accepting the one-stop slower aperture.