Sigma Contemporary 28-70mm f/2.8 DG DN
Sigma
94 Overall Score
vs
Viltrox Air AF 15mm f/1.7 15mm
Viltrox
69 Overall Score
What Buyers Say
Sigma Contemporary 28-70mm f/2.8 DG DN
No customer feedback yet
Viltrox Air AF 15mm f/1.7 15mm
78 out of 100 high confidence 76 reviews
This Viltrox lens range receives overwhelmingly positive feedback for its exceptional value, sharpness, and fast apertures. Users consistently praise the image quality and build, noting it punches far above its price point. A minority report issues with chromatic aberration, noisy autofocus in video, firmware updates, and occasional defective units, but the general sentiment is that these are excellent budget primes.
Pros
- Excellent sharpness
- Fast aperture (f/1.2, f/1.7, f/1.8)
- Great value for money
- Solid build quality
- Fast and accurate autofocus
Cons
- Chromatic aberration in high contrast scenes
- Noisy autofocus in video
- Aperture ring moves too easily
- Firmware update process is cumbersome
- Occasional defective units
Sharpness 28
Value for money 25
Build quality 18
Autofocus performance 16
Low light performance 12
Chromatic aberration 4
Scores
Macro
Professional
Portrait
Budget
Street
Video Cinema
Landscape
Travel
Wildlife Sports
Specifications
| Sigma Contemporary 28-70mm f/2.8 DG DN | Viltrox Air AF 15mm f/1.7 15mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 28 mm | 15 mm |
| Focal Length Max | 70 mm | 15 mm |
| Elements | 16 | 12 |
| Groups | 12 | 10 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 4★ | 3 |
| Coating | Super Multi-Layer Coating and Nano Porous Coating | HD nano-coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/16 |
| Min Aperture | f/2.8 | f/1.7 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 9 | 9 |
| Build | ||
| Mount | Sony E | Nikon Z |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.47 kg | 0.18 kg★ |
| Filter Thread | 67 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | STM★ |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 190 mm★ | 229 mm |
| Max Magnification | 3.3 to 4.6 x★ | 1:10 |
Pros & Cons
Sigma Contemporary 28-70mm f/2.8 DG DN
- Strong optical (95th percentile)95th %ile
- Strong macro (95th percentile)95th %ile
- Strong bokeh (91st percentile)91st %ile
- Strong aperture (88th percentile)88th %ile
- Below average stabilization (34th percentile)
Viltrox Air AF 15mm f/1.7 15mm
- Strong build (94th percentile)94th %ile
- Strong af (85th percentile)85th %ile
- Strong optical (82nd percentile)82nd %ile
- Strong social proof (81st percentile)81st %ile
- Below average user sentiment (32nd percentile)
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
Pricing
Sigma Contemporary 28-70mm f/2.8 DG DN0.069score per dollar
vs
Viltrox Air AF 15mm f/1.7 15mm0.240score per dollar
Viltrox Air AF 15mm f/1.7 15mm offers 3.5x better value for money
Verdict
Winner: Sigma Contemporary 28-70mm f/2.8 DG DN
Scores 94 overall, wins 9 of 9 usage categories and 6 of 21 specs.
