Compare lenses
Up to four at a time, prices for United States.
![]() | ![]() | |
|---|---|---|
| Lowest price today | $686 new $529 used | $168 new |
| Optics | ||
| Focal length | 40mm | 40mm |
| 35mm equivalent | 40mm (full frame) | 40mm (full frame) |
| Maximum apertureLower f-number lets in more light. A zoom wins only when it is as bright at both ends. | f/2.5 | f/2.5 |
| Minimum aperture | f/22 | f/16 |
| Made for | Full frame | Full frame |
| Elements / groups | 9 / 9 | 10 / 6 |
| Aperture blades | 7 | 7 |
| Closest focus | 0.25 m (best) | 0.34 m |
| Max magnification | 0.23× (best) | 0.14× |
| Focus & handling | ||
| Autofocus | Yes (Linear) | Yes (STM) |
| Optical stabilisation | No | No |
| Weather sealed | Yes (best) | No |
| Internal zoom | — | — |
| Aperture ring | Yes (best) | No |
| Teleconverter compatible | No | No |
| Size & weight | ||
| Weight | 173 g (best) | 180 g |
| Diameter × length | 68 × 45 mm | 68 × 55.9 mm |
| Filter thread | 49 mm | 52 mm |
Green marks the better figure where “better” is unambiguous. A dash means the maker doesn't publish it or we haven't verified it yet.

