Sigma Art 17-40mm f/1.8 DC
Tamron Di III 70-180mm f/2.8 Di III VC VXD G2 180mm
What Buyers Say
Sigma Art 17-40mm f/1.8 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
Tamron Di III 70-180mm f/2.8 Di III VC VXD G2 180mm
The Tamron 70-180mm f/2.8 G2 is widely praised for its sharpness, lightweight design, and excellent value compared to pricier OEM alternatives like the Sony 70-200mm GM II. Users highlight fast autofocus, effective image stabilization, and solid build quality, making it a favorite for sports, wildlife, and everyday telephoto shooting. A few concerns include the lack of a 200mm reach, potential dust ingress on the extending front, and isolated reports of gray market units without full warranty. Overall, it delivers professional-grade results at a fraction of the cost.
Pros
- Exceptional sharpness across zoom range
- Lightweight and portable design
- Excellent value for money
- Fast and accurate autofocus
- Effective image stabilization
Cons
- Lacks 200mm reach of competitors
- Extending front element may collect dust
- Gray market units without full warranty
- Not parfocal
- Incompatible with teleconverters
Scores
Specifications
| Sigma Art 17-40mm f/1.8 DC | Tamron Di III 70-180mm f/2.8 Di III VC VXD G2 180mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 17 mm | 70 mm |
| Focal Length Max | 40 mm | 180 mm |
| Elements | 17 | 20 |
| Groups | 11 | 15 |
| Aspherical Elements | 4★ | 3 |
| ED Elements | 4 | 4 |
| Coating | Super Multi-Layer Coating | Fluorine coating |
| Aperture | ||
| Max Aperture | f/1.8 | f/22 |
| Min Aperture | f/1.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 11★ | 9 |
| Build | ||
| Mount | Fujifilm X | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.54 kg★ | 0.85 kg |
| Filter Thread | 67 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | HLA (High-response Linear Actuator) | VXD |
| Stabilization | ✗ | ✓★ |
| Stabilization Stops | — | 5 stops★ |
| Focus | ||
| Min Focus Distance | 280 mm★ | 300 mm |
| Max Magnification | 1:4.8 | 1:2.6 |
Pros & Cons
Sigma Art 17-40mm f/1.8 DC
- Strong user sentiment (98th percentile)98th %ile
- Strong bokeh (97th percentile)97th %ile
- Strong optical (97th percentile)97th %ile
- Strong aperture (95th percentile)95th %ile
- Below average stabilization (34th percentile)
Tamron Di III 70-180mm f/2.8 Di III VC VXD G2 180mm
- Strong optical (98th percentile)98th %ile
- Strong stabilization (96th percentile)96th %ile
- Strong social proof (86th percentile)86th %ile
- Strong versatility (78th percentile)
- Below average aperture (22nd percentile)
- Below average bokeh (25th percentile)
Pricing
Sigma Art 17-40mm f/1.8 DC offers 1.7x better value for money
Verdict
Scores 96 overall, wins 7 of 9 usage categories and 4 of 22 specs.
