Canon RF 28-70mm f/2.8 IS STM
Canon
88 Overall Score
vs
Sigma EX DC OS HSM 17-50mm f/2.8 EX DC OS HSM
Sigma
58 Overall Score
What Buyers Say
Canon RF 28-70mm f/2.8 IS STM
90 out of 100 medium confidence 13 reviews
The Canon RF 24-70mm f/2.8L IS USM lens receives overwhelmingly positive feedback for its sharpness, fast autofocus, and lightweight design. Users appreciate it as a versatile upgrade from kit lenses, especially for mirrorless cameras like the R7 and R5 Mark II. A single negative review is due to a delivery issue, not product quality.
Pros
- Sharp image quality
- Fast and accurate autofocus
- Lightweight and compact design
- Great value for the price
- Versatile for various settings
Cons
- Possible delivery mismanagement
Image quality 4
Autofocus performance 3
Weight and portability 6
Value for money 4
Versatility 2
Delivery experience 1
Sigma EX DC OS HSM 17-50mm f/2.8 EX DC OS HSM
No customer feedback yet
Scores
Professional
Video Cinema
Portrait
Travel
Street
Wildlife Sports
Landscape
Budget
Macro
Specifications
| Canon RF 28-70mm f/2.8 IS STM | Sigma EX DC OS HSM 17-50mm f/2.8 EX DC OS HSM | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 28 mm | 17 mm |
| Focal Length Max | 70 mm | 50 mm |
| Elements | 14 | 17 |
| Groups | 11 | 13 |
| Aspherical Elements | 2 | 3★ |
| ED Elements | 2 | 2 |
| Coating | Super Spectra Coating (SSC) | Super multi-layer coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | — | 7★ |
| Build | ||
| Mount | Canon RF | Canon EF |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.49 kg★ | 0.56 kg |
| Filter Thread | 67 mm | 77 mm |
| AF & Stabilization | ||
| AF Type | STM★ | HSM |
| Stabilization | ✓ | ✓ |
| Stabilization Stops | 5.5 stops★ | 4 stops |
| Focus | ||
| Min Focus Distance | 270 mm★ | 280 mm |
| Max Magnification | 0.24x★ | 0.2x |
Pros & Cons
Canon RF 28-70mm f/2.8 IS STM
- Strong stabilization (98th percentile)98th %ile
- Strong aperture (88th percentile)88th %ile
- Strong user sentiment (88th percentile)88th %ile
- Strong bokeh (87th percentile)87th %ile
Sigma EX DC OS HSM 17-50mm f/2.8 EX DC OS HSM
- Strong optical (94th percentile)94th %ile
- Strong stabilization (92nd percentile)92nd %ile
- Strong versatility (81st percentile)81st %ile
- Strong social proof (81st percentile)81st %ile
- Below average bokeh (14th percentile)14th %ile
- Below average aperture (22nd percentile)
Pricing
Canon RF 28-70mm f/2.8 IS STM0.080score per dollar
vs
Sigma EX DC OS HSM 17-50mm f/2.8 EX DC OS HSM0.114score per dollar
Sigma EX DC OS HSM 17-50mm f/2.8 EX DC OS HSM offers 1.4x better value for money
Verdict
Winner: Canon RF 28-70mm f/2.8 IS STM
Scores 88 overall, wins 9 of 9 usage categories and 7 of 22 specs.
