Highlighted rows differ between the two models.
| Specification | Canon EF 55-200mm f/4.5-5.6 USM | Canon EF 90-300mm f/4.5-5.6 |
|---|---|---|
| Mount | ||
| Mount | canon-ef | canon-ef |
| Optics | ||
| Focal (difference) | 55-200 mm | 90-300 mm |
| Aperture | f/4.5-5.6 | f/4.5-5.6 |
| Prime | No | No |
| Stabilization | No | No |
Pick Model A if you need a wider starting focal length for closer subjects or tighter spaces, or if the slightly smoother USM autofocus motor matters to you. Choose Model B if you prioritize extra reach for distant subjects and can accept the narrower 90mm starting point, especially since it comes at a lower price. Both share the same maximum aperture, so neither gains an advantage in low-light performance.