Sigma Art 17-40mm F1.8 DC
Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD
What Buyers Say
Sigma Art 17-40mm F1.8 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 18-300mm f/3.5-6.3 Di III-A VC VXD
The Tamron 18-300mm F/3.5-6.3 Di III-A VC VXD is widely praised as a versatile all-in-one zoom for Sony APS-C cameras. Users love the incredible 16.6x range, close focusing at the wide end, and solid image quality, though some note softness beyond 70-80mm and slow autofocus. The lens is heavier than typical crop-sensor lenses but still considered portable. A few verified buyers report issues with sharpness at the telephoto end and a stiff zoom ring, but the majority find it an excellent walk-around lens that replaces multiple primes and zooms.
Pros
- Incredible 16.6x zoom range
- Close focusing at wide end (semi-macro)
- Good image quality and color rendition
- Solid build with weather sealing
- Effective vibration compensation (VC)
Cons
- Softness beyond 70-80mm
- Slow autofocus compared to smaller zooms
- Heavy and bulky for APS-C
- Stiff zoom ring when zooming out
- Moderate distortion at both ends
Scores
Specifications
| Sigma Art 17-40mm F1.8 DC | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 17 mm | 18 mm |
| Focal Length Max | 40 mm | 300 mm |
| Elements | 8 | 19 |
| Groups | 11 | 5 |
| Aspherical Elements | 4★ | 3 |
| ED Elements | 4 | 4 |
| Coating | Super Multi-Layer Coating | Fluorine Coating |
| Aperture | ||
| Max Aperture | f/1.8 | f/3.5 |
| Min Aperture | f/1.8 | 3.5-6.3 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 11★ | 7 |
| Build | ||
| Mount | Sony E | Sony E |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.54 kg★ | 0.62 kg |
| Filter Thread | 67 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | HLA (High-response Linear Actuator) | VXD |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 280 mm | 150 mm★ |
| Max Magnification | 1:4.8 | 1:2 |
Pros & Cons
Sigma Art 17-40mm F1.8 DC
- Strong user sentiment (98th percentile)98th %ile
- Strong bokeh (97th percentile)97th %ile
- Strong aperture (95th percentile)95th %ile
- Strong social proof (94th percentile)94th %ile
Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD
- Strong versatility (99th percentile)99th %ile
- Strong optical (95th percentile)95th %ile
- Strong macro (89th percentile)89th %ile
- Strong stabilization (81st percentile)81st %ile
Pricing
Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD offers 1.4x better value for money
Verdict
Scores 100 overall, wins 3 of 9 usage categories and 4 of 21 specs.
