Sigma Art 17-40mm f/1.8 DC 40mm
Sony FE SEL2070G 20-70mm
What Buyers Say
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
Sony FE SEL2070G 20-70mm
The Sony 20-70mm f4 G lens is highly praised for its sharpness, compact size, and versatile focal range, making it an excellent travel companion. Users appreciate the extra 4mm at the wide end compared to the 24-105mm, which enhances creative options for landscapes. A few drawbacks include noticeable field curvature at wide angles and the lack of a zoom lock to prevent lens creep. Overall, it is considered a significant upgrade over kit lenses and older models.
Pros
- Excellent edge-to-edge sharpness
- Compact and lightweight design
- Versatile 20-70mm focal range
- Great for travel and landscapes
- Fast and reliable autofocus
Cons
- Noticeable field curvature at wide end
- No zoom lock to prevent lens creep
- Slight noise in dark interiors at f4
- Not available at f2.8
Scores
Specifications
| Sigma Art 17-40mm f/1.8 DC 40mm | Sony FE SEL2070G 20-70mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 17 mm | 20 mm |
| Focal Length Max | 40 mm | 70 mm |
| Elements | 17 | 16 |
| Groups | 11 | 13 |
| Aspherical Elements | 4★ | 2 |
| ED Elements | 4 | 4 |
| Coating | Super Multi-Layer Coating | fluorine coatings |
| Aperture | ||
| Max Aperture | f/1.8 | f/4 |
| Min Aperture | f/1.8 | f/4 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 11★ | 9 |
| Build | ||
| Mount | Fujifilm X | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.54 kg | 0.49 kg★ |
| Filter Thread | 67 mm | 72 mm |
| AF & Stabilization | ||
| AF Type | HLA (High-response Linear Actuator) | Autofocus |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 280 mm | 250 mm★ |
| Max Magnification | 1:4.8★ | 0.39x |
Pros & Cons
Sigma Art 17-40mm f/1.8 DC 40mm
- Strong user sentiment (98th percentile)98th %ile
- Strong optical (97th percentile)97th %ile
- Strong bokeh (97th percentile)97th %ile
- Strong aperture (94th percentile)94th %ile
Sony FE SEL2070G 20-70mm
- Strong social proof (94th percentile)94th %ile
- Strong optical (93rd percentile)93rd %ile
- Strong versatility (85th percentile)85th %ile
- Strong bokeh (81st percentile)81st %ile
Pricing
Sigma Art 17-40mm f/1.8 DC 40mm offers 1.4x better value for money
Verdict
Scores 96 overall, wins 9 of 9 usage categories and 3 of 21 specs.
