Viltrox AF 15mm f/1.7 Air vs Sigma 15mm f/1.4 DC Contemporary
Both are Fujifilm X prime lenses for APS-C. Here is what actually differs.
Pick the Viltrox AF 15mm f/1.7 Air if
- You want the lighter lens to carry: 45 g lighter (180 g vs 225 g)
Pick the Sigma 15mm f/1.4 DC Contemporary if
- You need ½ stop more light for low light or background blur (f/1.4 vs f/1.7)
- You shoot close-ups: it focuses down to 0.18 m vs 0.23 m
- You want bigger close-ups: 0.13× vs 0.1× maximum magnification
Spec differences
11 differences| Viltrox AF 15mm f/1.7 Air | Sigma 15mm f/1.4 DC Contemporary | |
|---|---|---|
| Brand |
Viltrox
|
Sigma
|
| Max aperture |
f/1.7
|
f/1.4
½ stop faster
|
| Weight |
180 g
lighter
|
225 g
|
| Length |
56.7 mm
shorter
|
65.1 mm
|
| Diameter |
65 mm
|
64 mm
|
| Min focus distance |
0.23 m
|
0.18 m
closer
|
| Max magnification |
0.1×
|
0.13×
larger
|
| Optical design |
12 elements / 10 groups
|
13 elements / 11 groups
|
| Autofocus motor |
STM
|
Stepping motor
|
| Weather sealing |
not listed
|
Yes
|
| Released |
not listed
|
2026
|
7 identical specs hidden: mount, type, format, focal length, filter thread, aperture blades, image stabilization. Show all
- Mount
- Fujifilm X both
- Type
- Prime both
- Format
- APS-C both
- Focal length
- 15mm both
- Filter thread
- 58 mm both
- Aperture blades
- 9 both
- Image stabilization
- No both
More comparisons
Laowa 15mm f/4 Wide Angle Macro vs Viltrox AF 15mm f/1.7 Air
focuses closer vs 2½ stops faster
Laowa 15mm f/4 Wide Angle Macro vs Sigma 15mm f/1.4 DC Contemporary
focuses closer vs 3 stops faster
Laowa 15mm f/2 Zero-D vs Viltrox AF 15mm f/1.7 Air
Viltrox AF 15mm f/1.7 Air: ½ stop faster
Laowa 15mm f/2 Zero-D vs Sigma 15mm f/1.4 DC Contemporary
Sigma 15mm f/1.4 DC Contemporary: 1 stop faster