Sigma 20mm f/1.4 DG DN Art vs 7Artisans AF 10mm f/2.5 (fisheye)
Both are L-Mount primes for wide-angle and astrophotography — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Sigma 20mm f/1.4 DG DN Art | 7Artisans AF 10mm f/2.5 (fisheye) |
|---|---|---|
| Focal length | 20mm | 10mm |
| Max aperture | f/1.4 | f/2.5 |
| Type | prime | prime |
| Coverage | full-frame | full-frame |
| Mount | L-Mount | L-Mount |
Which should you buy?
- the Sigma 20mm f/1.4 DG DN Art opens wider (f/1.4) — brighter in low light and more background blur
- the 7Artisans AF 10mm f/2.5 (fisheye) (10mm) is wider — more in the frame for street and interiors; the Sigma 20mm f/1.4 DG DN Art (20mm) is tighter — more reach and compression for portraits
Where to buy
Sigma 20mm f/1.4 DG DN ArtSee price on Amazon
7Artisans AF 10mm f/2.5 (fisheye)See price on Amazon
FAQ
What's the difference between the Sigma 20mm f/1.4 DG DN Art and the 7Artisans AF 10mm f/2.5 (fisheye)?
The Sigma 20mm f/1.4 DG DN Art is 20mm f/1.4 prime, full-frame; the 7Artisans AF 10mm f/2.5 (fisheye) is 10mm f/2.5 prime, full-frame. Both fit the L-Mount.
Which is better in low light, the Sigma 20mm f/1.4 DG DN Art or the 7Artisans AF 10mm f/2.5 (fisheye)?
The Sigma 20mm f/1.4 DG DN Art — its f/1.4 maximum aperture lets in more light and gives more background blur than the f/2.5 of the other.
Do the Sigma 20mm f/1.4 DG DN Art and 7Artisans AF 10mm f/2.5 (fisheye) fit the same camera?
Yes — both are L-Mount lenses, so they fit Panasonic Lumix S, Leica SL, and Sigma fp full-frame bodies (the L-Mount Alliance).
More L-Mount comparisons: Panasonic Lumix S PRO 70-200mm f/2.8 OIS vs Panasonic Lumix S 28-200mm f/4-7.1 Macro OIS · Panasonic Lumix S PRO 50mm f/1.4 vs Sigma 50mm f/1.4 DG DN Art · Leica SL 50mm f/2 APO-Summicron vs Sigma 65mm f/2 DG DN Contemporary · Panasonic Lumix S 100mm f/2.8 Macro vs Sigma 90mm f/2.8 DG DN Contemporary · all L-Mount lenses · all comparisons