Sigma Contemporary 18-50mm f/2.8 DC DN
Viltrox AF 20/2.8 Z 20mm
What Buyers Say
Sigma Contemporary 18-50mm f/2.8 DC DN
The Sigma 18-50mm f/2.8 DC DN Contemporary is widely praised as a compact, lightweight, and sharp standard zoom for APS-C mirrorless cameras. Users consistently highlight its excellent image quality, fast f/2.8 aperture, and affordable price as major strengths, making it a popular upgrade from kit lenses. Common criticisms include the lack of optical stabilization and a poorly designed lens hood, but overall sentiment is overwhelmingly positive.
Pros
- Excellent image sharpness
- Compact and lightweight design
- Fast f/2.8 constant aperture
- Great value for the price
- Fast and silent autofocus
Cons
- No optical image stabilization
- Poorly designed lens hood
- No weather sealing
- Plastic build quality
- Zoom ring direction opposite to Fujifilm
Viltrox AF 20/2.8 Z 20mm
The Viltrox 27mm f/1.2 for Nikon Z receives overwhelmingly positive feedback for its exceptional image quality, solid build, and great value. Users praise its sharpness, bokeh, and low-light performance, though a few report autofocus glitches or defects. Overall, it is seen as a fantastic alternative to more expensive Nikon lenses.
Pros
- Exceptional image quality
- Solid build quality
- Great value for money
- Fast and responsive autofocus
- Beautiful bokeh and subject isolation
Cons
- Occasional autofocus tracking drops
- Defective unit reported (FEE error)
- Fixed aperture limitation
- Not as sharp as Nikkor 50mm 1.8 S
- Soft and slow focus for astrophotography
Scores
Specifications
| Sigma Contemporary 18-50mm f/2.8 DC DN | Viltrox AF 20/2.8 Z 20mm | |
|---|---|---|
| Optics | ||
| Type | zoom | wide-angle |
| Focal Length Min | 18 mm | 20 mm |
| Focal Length Max | 50 mm | 20 mm |
| Elements | 13 | 10 |
| Groups | 10 | 8 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 1 | 2★ |
| Coating | Super Multi-Layer Coating | high-definition nano multi-layer coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/16 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Nikon Z |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg | 0.17 kg★ |
| Filter Thread | 55 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | STM★ |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 190 mm |
| Max Magnification | 1:2.8★ | 0.17X |
Pros & Cons
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (90th percentile)90th %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
Viltrox AF 20/2.8 Z 20mm
- Strong build (95th percentile)95th %ile
- Strong af (85th percentile)85th %ile
- Strong optical (70th percentile)
- Below average user sentiment (30th percentile)
- Below average bokeh (31st percentile)
- Below average versatility (34th percentile)
Pricing
Viltrox AF 20/2.8 Z 20mm offers 2.2x better value for money
Verdict
Scores 98 overall, wins 9 of 9 usage categories and 3 of 21 specs.
