Canon RF28-70mm F2.8 IS STM 28-70mm
Sigma Art 24-70mm F2.8 DG DN Art
What Buyers Say
Canon RF28-70mm F2.8 IS STM 28-70mm
This lens is highly praised for its sharpness, lightweight design, and versatility, making it an excellent mid-range zoom for travel and low-light photography. Users appreciate its compatibility with Canon R-series cameras and its ability to deliver professional-quality images. The only minor drawback mentioned is the limited zoom range, but reviewers agree it is the most compact and light option available.
Pros
- Sharp image quality
- Lightweight and compact design
- Versatile mid-range zoom
- Excellent low-light performance
- Fast and accurate autofocus
Cons
- Limited zoom range
- High price for some users
Sigma Art 24-70mm F2.8 DG DN Art
The Sigma 24-70mm f/2.8 Art lens receives largely positive feedback for its sharp optics, solid build, and excellent value compared to OEM alternatives. Many users praise its image quality, especially in the center, and appreciate the included image stabilization. However, some reviewers report inconsistent autofocus, requiring micro-adjustments or the USB dock for calibration, and note that the lens is significantly heavy. A few copies exhibited soft corners or front/back focus issues.
Pros
- Sharp optics
- Solid build quality
- Great value for money
- Effective image stabilization (OS)
- Fast and quiet autofocus
Cons
- Heavy weight
- Inconsistent autofocus
- Soft corners at some focal lengths
- Needs micro-adjustment or USB dock for calibration
- Front/back focus issues on some copies
Scores
Specifications
| Canon RF28-70mm F2.8 IS STM 28-70mm | Sigma Art 24-70mm F2.8 DG DN Art | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 28 mm | 24 mm |
| Focal Length Max | 70 mm | 70 mm |
| Elements | 15 | 19 |
| Groups | 12 | 15 |
| Aspherical Elements | 2 | 4★ |
| ED Elements | 2 | 3★ |
| Coating | Super Spectra Coating (SSC) | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/22 | f/2.8 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 9 | 9 |
| Build | ||
| Mount | Canon RF | Sony E |
| Format | full-frame | full-frame |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.49 kg★ | 1.02 kg |
| Filter Thread | 67 mm | 82 mm |
| AF & Stabilization | ||
| AF Type | STM★ | HSM |
| Stabilization | ✓ | ✓ |
| Stabilization Stops | 5.5 stops★ | 4 stops |
| Focus | ||
| Min Focus Distance | 239 mm | 170 mm★ |
| Max Magnification | 1:4.2 | 1:2.7 |
Pros & Cons
Canon RF28-70mm F2.8 IS STM 28-70mm
- Strong stabilization (99th percentile)99th %ile
- Strong user sentiment (98th percentile)98th %ile
- Strong social proof (91st percentile)91st %ile
- Strong optical (86th percentile)86th %ile
- Below average aperture (21st percentile)
- Below average bokeh (24th percentile)
Sigma Art 24-70mm F2.8 DG DN Art
- Strong optical (98th percentile)98th %ile
- Strong social proof (94th percentile)94th %ile
- Strong stabilization (93rd percentile)93rd %ile
- Strong bokeh (89th percentile)89th %ile
Pricing
Sigma Art 24-70mm F2.8 DG DN Art offers 1.5x better value for money
Verdict
Scores 97 overall, wins 7 of 9 usage categories and 3 of 22 specs.
