Sigma Art 17-40mm f/1.8 DC
Sony FE 400-800mm f/6.3-8 G OSS 400mm
What Buyers Say
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
Sony FE 400-800mm f/6.3-8 G OSS 400mm
The Sony 400-800mm lens is praised for its sharpness and fast autofocus, often outperforming the 200-600mm. However, it is heavy, front-heavy, and requires fast shutter speeds and good light due to the F8 aperture. A significant concern is a reported crack in the fluorine coating not covered by warranty, leading to frustration.
Pros
- Sharp image quality
- Fast autofocus
- Outperforms 200-600mm
- Internal focusing
- Great for wildlife photography
Cons
- Heavy and front-heavy
- F8 aperture limits low-light use
- Requires fast shutter speeds
- Warranty does not cover coating cracks
- Expensive extended warranty needed
Scores
Specifications
| Sigma Art 17-40mm f/1.8 DC | Sony FE 400-800mm f/6.3-8 G OSS 400mm | |
|---|---|---|
| Optics | ||
| Type | zoom | super-telephoto |
| Focal Length Min | 17 mm | 400 mm |
| Focal Length Max | 40 mm | 800 mm |
| Elements | 17 | 27 |
| Groups | 11 | 19 |
| Aspherical Elements | 4★ | — |
| ED Elements | 4 | 6★ |
| Coating | Super Multi-Layer Coating | Fluorine coating |
| Aperture | ||
| Max Aperture | f/1.8 | f/6.3 |
| Min Aperture | f/1.8 | 6.3-8 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 11 | 11 |
| Build | ||
| Mount | Fujifilm X | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.54 kg★ | 2.48 kg |
| Filter Thread | 67 mm | 105 mm |
| AF & Stabilization | ||
| AF Type | HLA (High-response Linear Actuator) | Linear motor★ |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 280 mm★ | 1.70 m |
| Max Magnification | 1:4.8 | 1:4.34 |
Pros & Cons
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)
Sony FE 400-800mm f/6.3-8 G OSS 400mm
- Strong optical (100th percentile)100th %ile
- Strong af (98th percentile)98th %ile
- Strong stabilization (79th percentile)
- Strong versatility (72nd percentile)
- Below average build (9th percentile)9th %ile
- Below average user sentiment (17th percentile)17th %ile
Pricing
Verdict
Scores 97 overall, wins 8 of 9 usage categories and 4 of 21 specs.
