Sigma Art 17-40mm f/1.8 DC 40mm
Sigma
89 Overall Score
vs
Canon RF-S7.8mm F4 STM Dual 7mm
Canon
53 Overall Score
Scores
Budget
Video Cinema
Professional
Portrait
Macro
Street
Travel
Landscape
Wildlife Sports
Specifications
| Sigma Art 17-40mm f/1.8 DC 40mm | Canon RF-S7.8mm F4 STM Dual 7mm | |
|---|---|---|
| Optics | ||
| Type | zoom | fisheye |
| Focal Length Min | 17 mm | 8 mm |
| Focal Length Max | 40 mm | 8 mm |
| Elements | 17 | 9 |
| Groups | 11 | 7 |
| Aspherical Elements | 4★ | — |
| ED Elements | 4★ | 2 |
| Coating | Super Multi-Layer Coating | Super Spectra Coating |
| Aperture | ||
| Max Aperture | f/1.8 | f/16 |
| Min Aperture | f/1.8 | f/4 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 11★ | 7 |
| Build | ||
| Mount | Fujifilm X | Canon RF |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.54 kg | 0.13 kg★ |
| Filter Thread | 67 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | HLA (High-response Linear Actuator) | STM★ |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 280 mm | 150 mm★ |
| Max Magnification | 1:4.8 | 1:14 |
Pros & Cons
Sigma Art 17-40mm f/1.8 DC 40mm
- Strong optical (97th percentile)97th %ile
- Strong bokeh (96th percentile)96th %ile
- Strong aperture (93rd percentile)93rd %ile
- Strong social proof (90th percentile)90th %ile
Canon RF-S7.8mm F4 STM Dual 7mm
- Strong build (94th percentile)94th %ile
- Strong macro (90th percentile)90th %ile
- Strong af (87th percentile)87th %ile
- Below average social proof (8th percentile)8th %ile
- Below average bokeh (28th percentile)
- Below average versatility (34th percentile)
Pricing
Sigma Art 17-40mm f/1.8 DC 40mm0.071score per dollar
vs
Canon RF-S7.8mm F4 STM Dual 7mm0.097score per dollar
Canon RF-S7.8mm F4 STM Dual 7mm offers 1.4x better value for money
Verdict
Winner: Sigma Art 17-40mm f/1.8 DC 40mm
Scores 89 overall, wins 9 of 9 usage categories and 4 of 21 specs.
