Canon EF 28mm f/1.8 USM vs Canon EF 40mm f/2.8 STM
Prices & availability
Specification comparison
Highlighted rows differ between the two models.
| Specification | Canon EF 28mm f/1.8 USM | Canon EF 40mm f/2.8 STM |
|---|---|---|
| Mount | ||
| Mount | canon-ef | canon-ef |
| Optics | ||
| Focal (difference) | 28 mm | 40 mm |
| Aperture (difference) | f/1.8 | f/2.8 |
| Prime | Yes | Yes |
| Stabilization | No | No |
| Build | ||
| Weight (g) (difference) | — | 130,000 g |
Verdict
Pick Model A if you need a brighter f/1.8 aperture for low-light performance or shallower depth of field, and prefer the slightly wider 28mm focal length. Choose Model B if budget is a priority, the lighter weight (130g) matters more, or the 40mm focal length better suits your framing needs—its f/2.8 aperture still delivers solid image quality at a lower price.