Canon RF 28-70mm f/2.8 IS STM
Canon
86 Overall Score
vs
Sigma Art 17-40mm f/1.8 DC
Sigma
47 Overall Score
Scores
Macro
Video Cinema
Budget
Landscape
Travel
Professional
Wildlife Sports
Street
Portrait
Specifications
| Canon RF 28-70mm f/2.8 IS STM | Sigma Art 17-40mm f/1.8 DC | |
|---|---|---|
| Optics | ||
| Type | zoom | — |
| Focal Length Min | 28 mm | 17 mm |
| Focal Length Max | 70 mm | 40 mm |
| Elements | 15 | — |
| Groups | 12 | — |
| Aspherical Elements | 2★ | — |
| ED Elements | 2★ | — |
| Coating | Super Spectra Coating (SSC) | — |
| Aperture | ||
| Max Aperture | f/22 | f/1.8 |
| Min Aperture | f/2.8 | — |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 9★ | — |
| Build | ||
| Mount | Canon RF | — |
| Format | full-frame★ | — |
| Weather Sealed | ✓★ | — |
| Weight | 0.49 kg★ | — |
| Filter Thread | 67 mm | — |
| AF & Stabilization | ||
| AF Type | STM★ | — |
| Stabilization | ✓★ | — |
| Stabilization Stops | 5.5 stops★ | — |
| Focus | ||
| Min Focus Distance | 239 mm★ | — |
| Max Magnification | 1:4.2★ | — |
Pros & Cons
Canon RF 28-70mm f/2.8 IS STM
- Strong stabilization (99th percentile)99th %ile
- Strong user sentiment (98th percentile)98th %ile
- Strong social proof (90th percentile)90th %ile
- Strong af (87th percentile)87th %ile
- Below average aperture (20th percentile)20th %ile
- Below average bokeh (23rd percentile)
Sigma Art 17-40mm f/1.8 DC
- Strong aperture (93rd percentile)93rd %ile
- Strong bokeh (91st percentile)91st %ile
- Strong versatility (76th percentile)
- Below average macro (14th percentile)14th %ile
- Below average optical (20th percentile)20th %ile
- Below average social proof (29th percentile)
- Below average build (32nd percentile)
Verdict
Winner: Canon RF 28-70mm f/2.8 IS STM
Scores 86 overall, wins 8 of 9 usage categories and 11 of 22 specs.