Canon EF 50mm f/1.8 STM vs Sigma 14mm f/1.8 DG HSM Art
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Sigma 14mm f/1.8 DG HSM Art goes wider (14mm vs 50mm).
- Canon EF 50mm f/1.8 STM reaches further (50mm vs 14mm).
- Sigma 14mm f/1.8 DG HSM Art is the newer design (2017 vs 2015).
| Spec | EF 50mm f/1.8 STM | 14mm f/1.8 DG HSM Art |
|---|---|---|
| Brand | Canon | Sigma |
| Mount | Canon EF | Canon EF |
| Type | Prime | Prime |
| Focal length | 50mm | 14mm (wider) |
| Max aperture | f/1.8 | f/1.8 |
| Released | 2015 | 2017 |
| Blades | 7 | 9 |
| Format | full-frame | full-frame |
| Groups | 5 | 11 |
| Af motor | STM | HSM |
| Elements | 6 | 16 |
| Weight g | 160.0 | n/a |
| Filter mm | 49 | n/a |
| Length mm | 39.3 | 126.0 |
| Diameter mm | 69.2 | 95.4 |
| Min focus m | 0.35 | 0.27 (closer focusing) |
| Max magnification | 0.21 | 0.1 |
Canon EF 50mm f/1.8 STM
Compact 50mm f/1.8 prime with an STM stepping motor and a metal mount, replacing the older f/1.8 II. Covers full frame and works on APS-C EOS bodies.
Pros
- Fast f/1.8 aperture
- Light and small
- Quiet STM focusing
- Metal lens mount
Cons
- No image stabilization
- Corners soften at f/1.8
- Focus ring is electronic rather than mechanically coupled
Sigma 14mm f/1.8 DG HSM Art
An ultra-wide f/1.8 prime for full-frame DSLRs. It is widely used for astrophotography.
Pros
- f/1.8 at 14mm
- Sharp
- Good coma control
Cons
- Bulbous front element
- Heavy at about 1,170 g