Tamron Di III VXD 50-400mm F/4.5-6.3
Sigma Art 17-40mm f/1.8 DC 40mm
What Buyers Say
Tamron Di III VXD 50-400mm F/4.5-6.3
The Tamron 50-400mm f/4.5-6.3 Di III VC VXD is widely praised for its versatile zoom range, sharp image quality, and excellent value for money. Users highlight its usefulness for wildlife, sports, and travel photography, though some note it is heavier than expected and the maximum aperture limits low-light performance. A few Sony users reported issues with image stabilization when paired with certain camera bodies, but overall sentiment is very positive.
Pros
- Versatile 50-400mm zoom range
- Sharp image quality
- Excellent value for money
- Good build quality
- Fast and quiet autofocus
Cons
- Heavier than expected
- Limited low-light performance due to small aperture
- Image stabilization issues with some Sony bodies
- Lens collar not included
- A bit dark compared to faster lenses
Sigma Art 17-40mm f/1.8 DC 40mm
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
| Tamron Di III VXD 50-400mm F/4.5-6.3 | Sigma Art 17-40mm f/1.8 DC 40mm | |
|---|---|---|
| Optics | ||
| Type | telephoto | zoom |
| Focal Length Min | 50 mm | 17 mm |
| Focal Length Max | 400 mm | 40 mm |
| Elements | 24 | 17 |
| Groups | 18 | 11 |
| Aspherical Elements | 1 | 4★ |
| ED Elements | — | 4★ |
| Coating | BBAR-G2 | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/6.3 | f/1.8 |
| Min Aperture | 4.5-6.3 | f/1.8 |
| Constant | ✗ | ✓★ |
| Diaphragm Blades | 9 | 11★ |
| Build | ||
| Mount | Nikon Z | Fujifilm X |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 1.18 kg | 0.54 kg★ |
| Filter Thread | 67 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | VXD linear motor★ | HLA (High-response Linear Actuator) |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 250 mm★ | 280 mm |
| Max Magnification | 1:2 | 1:4.8 |
Pros & Cons
Tamron Di III VXD 50-400mm F/4.5-6.3
- Strong af (98th percentile)98th %ile
- Strong versatility (97th percentile)97th %ile
- Strong optical (96th percentile)96th %ile
- Strong stabilization (80th percentile)80th %ile
- Below average build (24th percentile)
Sigma Art 17-40mm f/1.8 DC 40mm
- Strong user sentiment (98th percentile)98th %ile
- Strong optical (97th percentile)97th %ile
- Strong bokeh (96th percentile)96th %ile
- Strong aperture (94th percentile)94th %ile
- Below average stabilization (35th percentile)
Verdict
Scores 97 overall, wins 6 of 9 usage categories and 5 of 21 specs.