Highlighted rows differ between the two models.
| Specification | Canon EF 500mm f/4.5 L USM | Canon EF 600mm f/4 L USM |
|---|---|---|
| Mount | ||
| Mount | canon-ef | canon-ef |
| Optics | ||
| Focal (difference) | 500 mm | 600 mm |
| Aperture (difference) | f/4.5 | f/4.0 |
| Prime | Yes | Yes |
| Stabilization | No | No |
Pick Model A if you need to save 220 EUR and can work with 100 mm less reach and a half-stop slower aperture. Model B stays the better choice if the extra 100 mm and brighter f/4 justify the higher price for your subjects.