Viltrox 25mm f/1.7 Z 25mm
Sigma Art 17-40mm F1.8 DC
What Buyers Say
Viltrox 25mm f/1.7 Z 25mm
The Viltrox 23mm f/1.4 lens for Fuji X mount is widely praised for its sharpness, fast and quiet autofocus, and excellent build quality relative to its budget price. Users note it resolves 40MP sensors well and produces beautiful bokeh, though some wish it had an aperture ring with click stops and mention it is heavier than comparable lenses. A few isolated issues include receiving the wrong hood and one copy lacking sharpness compared to the Viltrox 35mm Air lens.
Pros
- Excellent sharpness
- Fast and quiet autofocus
- Great build quality for the price
- Beautiful bokeh
- Resolves 40MP sensors well
Cons
- No aperture ring with click stops
- Heavier than comparable lenses
- Sharpness drops in corners
- Some copies less sharp than Viltrox 35mm Air
- Wrong hood received in one case
Sigma Art 17-40mm F1.8 DC
The Sigma 17-40mm f/1.8 DC DN Art lens is overwhelmingly praised for its exceptional image quality, fast constant aperture, and compact internal zoom design. Users highlight its sharpness, lightweight build, and excellent autofocus performance, especially on crop-sensor mirrorless cameras like the Canon R7 and Fujifilm bodies. A few questions about compatibility with specific cameras and features like weather sealing and aperture ring are noted, but the overall sentiment is extremely positive.
Pros
- Exceptional image quality
- Fast constant f/1.8 aperture
- Compact internal zoom design
- Lightweight build
- Sharp and bright photos
Cons
- No weather sealing mentioned
- No manual aperture ring on some mounts
- Compatibility questions with full-frame cameras
- Expensive for some buyers
Scores
Specifications
| Viltrox 25mm f/1.7 Z 25mm | Sigma Art 17-40mm F1.8 DC | |
|---|---|---|
| Optics | ||
| Type | prime | zoom |
| Focal Length Min | 25 mm | 17 mm |
| Focal Length Max | 25 mm | 40 mm |
| Elements | 10 | 8 |
| Groups | 12 | 11 |
| Aspherical Elements | 2 | 4★ |
| ED Elements | 1 | 4★ |
| Coating | HD Multilayer Nano Coating | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/1.7 | f/1.8 |
| Min Aperture | f/1.7 | f/1.8 |
| Constant | ✗ | ✓★ |
| Diaphragm Blades | 9 | 11★ |
| Build | ||
| Mount | Nikon Z | Sony E |
| Format | APS-C | APS-C |
| Weather Sealed | ✗ | ✓★ |
| Weight | 0.18 kg★ | 0.54 kg |
| Filter Thread | 52 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | STM★ | HLA (High-response Linear Actuator) |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 300 mm | 280 mm★ |
| Max Magnification | 0.25x | 1:4.8★ |
Pros & Cons
Viltrox 25mm f/1.7 Z 25mm
- Strong bokeh (96th percentile)96th %ile
- Strong aperture (96th percentile)96th %ile
- Strong build (87th percentile)87th %ile
- Strong af (85th percentile)85th %ile
- Below average versatility (34th percentile)
Sigma Art 17-40mm F1.8 DC
- Strong user sentiment (98th percentile)98th %ile
- Strong bokeh (97th percentile)97th %ile
- Strong aperture (94th percentile)94th %ile
- Strong social proof (94th percentile)94th %ile
Verdict
Scores 100 overall, wins 7 of 9 usage categories and 7 of 21 specs.