Canon L EF 17-40mm f/4L USM
Canon
61 Overall Score
vs
Sigma Contemporary 28-70mm f/2.8 DG DN
Sigma
43 Overall Score
Scores
Travel
Landscape
Budget
Professional
Wildlife Sports
Street
Video Cinema
Macro
Portrait
Specifications
| Canon L EF 17-40mm f/4L USM | Sigma Contemporary 28-70mm f/2.8 DG DN | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 17 mm | 28 mm |
| Focal Length Max | 40 mm | 70 mm |
| Elements | 12 | 16 |
| Groups | 9 | 12 |
| Aspherical Elements | 3 | 3 |
| ED Elements | 1 | 4★ |
| Coating | Super Spectra coating | Super Multi-Layer and Nano Porous coatings |
| Aperture | ||
| Max Aperture | f/22 | f/22 |
| Min Aperture | f/4 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Canon EF | Sony E |
| Format | full-frame | full-frame |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.50 kg★ | — |
| Filter Thread | 77 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | USM★ | Stepping motor |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 280 mm★ | — |
| Max Magnification | 0.24x★ | — |
Pros & Cons
Canon L EF 17-40mm f/4L USM
- Strong af (93rd percentile)93rd %ile
- Strong social proof (86th percentile)86th %ile
- Strong optical (78th percentile)
- Strong versatility (76th percentile)
- Below average bokeh (14th percentile)14th %ile
- Below average aperture (22nd percentile)
- Below average stabilization (34th percentile)
Sigma Contemporary 28-70mm f/2.8 DG DN
- Strong optical (95th percentile)95th %ile
- Strong af (85th percentile)85th %ile
- Strong versatility (77th percentile)
- Strong build (70th percentile)
- Below average macro (12th percentile)12th %ile
- Below average aperture (22nd percentile)
- Below average bokeh (25th percentile)
- Below average social proof (27th percentile)
Pricing
Canon L EF 17-40mm f/4L USM0.149score per dollar
vs
Sigma Contemporary 28-70mm f/2.8 DG DN0.041score per dollar
Canon L EF 17-40mm f/4L USM offers 3.6x better value for money
Verdict
Winner: Canon L EF 17-40mm f/4L USM
Scores 61 overall, wins 7 of 9 usage categories and 4 of 21 specs.
