Tamron Di III 28-200mm f/2.8-5.6 Di III RXD
Sigma Art 17-40mm f/1.8 DC
What Buyers Say
Tamron Di III 28-200mm f/2.8-5.6 Di III RXD
The Tamron 28-200mm f/2.8-5.6 Di III RXD is widely praised as a versatile all-in-one travel lens that delivers impressive sharpness and fast autofocus for its price. Users love its lightweight design and the ability to cover wide-angle to telephoto without swapping lenses, though some note slower AF on older bodies and a few report manual focus or durability issues. Overall, it's considered an excellent value for Sony full-frame shooters.
Pros
- Versatile all-in-one zoom range
- Lightweight and compact design
- Excellent image sharpness
- Fast and reliable autofocus
- Great value for money
Cons
- Autofocus issues on older bodies
- Manual focus ring non-functional on some units
- Slower autofocus compared to native Sony lenses
- Softness at the long end
- 28mm wide end not wide enough for some
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 Di III 28-200mm f/2.8-5.6 Di III RXD | Sigma Art 17-40mm f/1.8 DC | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 28 mm | 17 mm |
| Focal Length Max | 200 mm | 40 mm |
| Elements | 18 | 17 |
| Groups | 14 | 11 |
| Aspherical Elements | 1 | 4★ |
| ED Elements | 2 | 4★ |
| Coating | Fluorine Coating | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/1.8 |
| Min Aperture | 2.8-5.6 | f/1.8 |
| Constant | ✗ | ✓★ |
| Diaphragm Blades | 7 | 11★ |
| Build | ||
| Mount | Sony E | Fujifilm X |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.57 kg | 0.54 kg★ |
| Filter Thread | 67 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | RXD stepping motor★ | HLA (High-response Linear Actuator) |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 190 mm★ | 280 mm |
| Max Magnification | 1:3.1 | 1:4.8 |
Pros & Cons
Tamron Di III 28-200mm f/2.8-5.6 Di III RXD
- Strong versatility (96th percentile)96th %ile
- Strong optical (89th percentile)89th %ile
- Strong aperture (88th percentile)88th %ile
- Strong bokeh (87th percentile)87th %ile
- Below average stabilization (35th percentile)
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 (35th percentile)
Pricing
Tamron Di III 28-200mm f/2.8-5.6 Di III RXD offers 1.2x better value for money
Verdict
Scores 96 overall, wins 4 of 9 usage categories and 5 of 21 specs.
