Canon EF 135mm f/2 L USM vs Canon EF 300mm f/4 L USM
Prices & availability
Specification comparison
Highlighted rows differ between the two models.
| Specification | Canon EF 135mm f/2 L USM | Canon EF 300mm f/4 L USM |
|---|---|---|
| Mount | ||
| Mount | canon-ef | canon-ef |
| Optics | ||
| Focal (difference) | 135 mm | 300 mm |
| Aperture (difference) | f/2.0 | f/4.0 |
| Prime | Yes | Yes |
| Stabilization | No | No |
Verdict
Pick Model A if you prioritize low-light performance, a brighter viewfinder, and a more versatile focal length for portraits or indoor events. Model B stays the better choice if you need the extra reach for wildlife, sports, or distant subjects and can work within its narrower aperture. The price difference is negligible, so the decision hinges solely on your shooting needs.