Samyang AF 14mm f/2.8 FE vs Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art
Samyang AF 14mm f/2.8 FE has more in its favour on paper. The 15mm f/1.4 DG DN Diagonal Fisheye Art gathers more light for low light and background blur; the AF 14mm f/2.8 FE is lighter and cheaper.
Choose the AF 14mm f/2.8 FE for
- less weight (485g vs 670g)
- a lower price (about £260 vs £1,399)
Choose the 15mm f/1.4 DG DN Diagonal Fisheye Art for
- a brighter maximum aperture (f/1.4, about 2.0 stops more light)
- weather sealing
| AF 14mm f/2.8 FE | 15mm f/1.4 DG DN Diagonal Fisheye Art | |
|---|---|---|
| Brand | Samyang | Sigma |
| Focal length | 14mm | 15mm |
| Maximum aperture | f/2.8 | f/1.4 |
| Weight | 485 g | 670 g |
| Stabilisation | No | No |
| Weather sealing | No | Yes |
| Filter size | — | — |
| Made for | Full frame | Full frame |
| New price | £499 | £1,399 |
| Used at MPB (Sony E / FE) | £214–£304 | None listed |
More lens comparisons
See all Sony E / FE cameras and lenses.
Frequently asked questions
Is the Samyang AF 14mm f/2.8 FE better than the Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art?
The AF 14mm f/2.8 FE offers less weight (485g vs 670g), a lower price (about £260 vs £1,399); the 15mm f/1.4 DG DN Diagonal Fisheye Art offers a brighter maximum aperture (f/1.4, about 2.0 stops more light), weather sealing.
Which is better value, the AF 14mm f/2.8 FE or the 15mm f/1.4 DG DN Diagonal Fisheye Art?
On Sony E / FE, the Samyang AF 14mm f/2.8 FE costs about £260 against about £1,399 for the Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art (MPB used where listed, otherwise new; checked 5 November 2026).
Is f/1.4 worth it over f/2.8?
f/1.4 gathers about 2.0 stops more light, which helps indoors, at night and for background blur. If you mostly shoot in good light, the slower lens is usually lighter and cheaper.
Do both lenses fit the same cameras?
Both are available for Sony E / FE (and other mounts: L-Mount).