Tamron SP AFB005NII-700 17-50mm
Sigma Art 17-40mm f/1.8 DC
What Buyers Say
Tamron SP AFB005NII-700 17-50mm
The Tamron 17-50mm F/2.8 lens is widely praised as a sharp, versatile upgrade over kit lenses with effective vibration compensation. Users love its constant aperture for low-light and portrait work, though some report quality control issues like back focus or poor factory cleaning. A few note noise from the VC mechanism and slightly slower focusing, but overall it's considered excellent value, especially compared to pricier brand-name equivalents.
Pros
- Sharp images even wide open
- Effective vibration compensation
- Constant F/2.8 aperture
- Great value for money
- Versatile for indoor/outdoor use
Cons
- Noisy vibration compensation
- Some quality control issues
- Back focus problems reported
- No weather sealing
- Slower autofocus motor
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
Scores
Specifications
| Tamron SP AFB005NII-700 17-50mm | Sigma Art 17-40mm f/1.8 DC | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 17 mm | 17 mm |
| Focal Length Max | 50 mm | 40 mm |
| Elements | 13 | 17 |
| Groups | 16 | 11 |
| Aspherical Elements | 2 | 4★ |
| ED Elements | 1 | 4★ |
| Coating | Internal Surface Coatings | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/1.8 |
| Min Aperture | f/2.8 | f/1.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 11★ |
| Build | ||
| Mount | Nikon F | Fujifilm X |
| Format | APS-C | APS-C |
| Weather Sealed | — | ✓★ |
| Weight | 0.57 kg | 0.54 kg★ |
| Filter Thread | 67 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | Built in motor | HLA (High-response Linear Actuator) |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 270 mm★ | 280 mm |
| Max Magnification | 1:4.8 | 1:4.8 |
Pros & Cons
Tamron SP AFB005NII-700 17-50mm
- Strong aperture (88th percentile)88th %ile
- Strong bokeh (87th percentile)87th %ile
- Strong optical (84th percentile)84th %ile
- Strong versatility (81st percentile)81st %ile
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)
Verdict
Scores 97 overall, wins 9 of 9 usage categories and 5 of 21 specs.