Canon 420-800mm
Canon
46 Overall Score
vs
Sigma Art 17-40mm f/1.8 DC
Sigma
96 Overall Score
What Buyers Say
Canon 420-800mm
No customer feedback yet
Sigma Art 17-40mm f/1.8 DC
95 out of 100 high confidence 36 reviews
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
Image quality 8
Aperture 7
Build quality 6
Autofocus 4
Value for money 4
Compatibility 12
Scores
Portrait
Video Cinema
Professional
Budget
Macro
Travel
Street
Landscape
Wildlife Sports
Specifications
| Canon 420-800mm | Sigma Art 17-40mm f/1.8 DC | |
|---|---|---|
| Optics | ||
| Type | telephoto | zoom |
| Focal Length Min | 420 mm | 17 mm |
| Focal Length Max | 800 mm | 40 mm |
| Elements | — | 17 |
| Groups | — | 11 |
| Aspherical Elements | — | 4★ |
| ED Elements | — | 4★ |
| Coating | Super HD Multi-Coated | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/16 | f/1.8 |
| Min Aperture | f/8.3 | f/1.8 |
| Constant | ✗ | ✓★ |
| Diaphragm Blades | — | 11★ |
| Build | ||
| Mount | Canon EF | Fujifilm X |
| Format | full-frame★ | APS-C |
| Weather Sealed | — | ✓★ |
| Weight | 0.52 kg★ | 0.54 kg |
| Filter Thread | 62 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | manual focus only | HLA (High-response Linear Actuator) |
| Stabilization | — | ✗ |
| Focus | ||
| Min Focus Distance | 62 mm★ | 280 mm |
| Max Magnification | — | 1:4.8★ |
Pros & Cons
Canon 420-800mm
- Strong macro (94th percentile)94th %ile
- Strong versatility (69th percentile)
- Below average af (15th percentile)15th %ile
- Below average bokeh (32nd percentile)
- Below average stabilization (34th 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 (34th percentile)
Pricing
Canon 420-800mm0.657score per dollar
vs
Sigma Art 17-40mm f/1.8 DC0.107score per dollar
Canon 420-800mm offers 6.1x better value for money
Verdict
Winner: Sigma Art 17-40mm f/1.8 DC
Scores 96 overall, wins 9 of 9 usage categories and 6 of 21 specs.
