Highlighted rows differ between the two models.
| Specification | Canon EF 28-135mm f/3.5-5.6 IS USM | Tamron SP AF 200-500mm f/5-6.3 Di LD (IF) - Monture Canon EF |
|---|---|---|
| Mount | ||
| Mount | canon-ef | canon-ef |
| Optics | ||
| Focal (difference) | 28-135 mm | 200-500 mm |
| Aperture (difference) | f/3.5-5.6 | f/5.0-6.3 |
| Prime | No | No |
| Stabilization (difference) | Yes | No |
Pick Model A if you need a versatile, everyday zoom for wide to short-telephoto shots at a lower price and brighter wide-end aperture. Model B stays the better choice if your priority is extreme telephoto reach for wildlife or sports, despite its higher cost and slower aperture.