Canon EF 70-300mm f/4-5.6 IS II USM vs Canon RF 100-400mm f/5.6-8 IS USM
Prices & availability
Specification comparison
Highlighted rows differ between the two models.
| Specification | Canon EF 70-300mm f/4-5.6 IS II USM | Canon RF 100-400mm f/5.6-8 IS USM |
|---|---|---|
| Mount | ||
| Mount (difference) | canon-ef | canon-rf |
| Optics | ||
| Focal (difference) | 70-300 mm | 100-400 mm |
| Aperture (difference) | f/4.0-5.6 | f/5.6-8.0 |
| Prime | No | No |
| Stabilization | Yes | Yes |
| Build | ||
| Weight (g) (difference) | 710,000 g | 635,000 g |
Verdict
Pick Model A if you need a lighter, brighter, and more affordable telephoto zoom for general use up to 300 mm. Model B stays the better choice if you prioritize the extra reach to 400 mm and can accept the higher price, heavier weight, and dimmer maximum aperture.