Canon RF 28-70mm f/2.8 IS STM
Sigma EX 726306 80-400mm
What Buyers Say
Canon RF 28-70mm f/2.8 IS STM
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
Sigma EX 726306 80-400mm
The Sigma 80-400mm lens offers good value for money compared to the Nikon equivalent, with decent optics and vibration reduction. However, users report issues with stiff zoom and focus rings, and the autofocus can be noisy. While some find it excellent for wildlife photography after practice, others prefer saving for the Nikon version due to build quality concerns.
Pros
- Good value for money
- Decent optics
- Effective vibration reduction
- Handheld usability
- Good for wildlife photography
Cons
- Stiff zoom and focus rings
- Noisy autofocus
- VR drift over time
- Inferior build quality compared to Nikon
- Learning curve for sharp images
Scores
Specifications
| Canon RF 28-70mm f/2.8 IS STM | Sigma EX 726306 80-400mm | |
|---|---|---|
| Optics | ||
| Type | zoom | telephoto |
| Focal Length Min | 28 mm | 80 mm |
| Focal Length Max | 70 mm | 400 mm |
| Elements | 14 | — |
| Groups | 11 | — |
| Aspherical Elements | 2★ | — |
| ED Elements | 2 | 4★ |
| Coating | Super Spectra Coating (SSC) | — |
| Aperture | ||
| Max Aperture | f/2.8 | f/4.5 |
| Min Aperture | f/2.8 | 4.5-5.6 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | — | 9★ |
| Build | ||
| Mount | Canon RF | Nikon F |
| Format | full-frame | full-frame |
| Weather Sealed | ✓★ | — |
| Weight | 0.49 kg★ | 1.75 kg |
| Filter Thread | 67 mm | — |
| AF & Stabilization | ||
| AF Type | STM★ | HSM |
| Stabilization | ✓ | ✓ |
| Stabilization Stops | 5.5 stops★ | — |
| Focus | ||
| Min Focus Distance | 270 mm | 35 mm★ |
| Max Magnification | 0.24x★ | — |
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 726306 80-400mm
- Strong macro (97th percentile)97th %ile
- Strong versatility (93rd percentile)93rd %ile
- Strong bokeh (82nd percentile)82nd %ile
- Strong stabilization (79th percentile)
- Below average build (2nd percentile)2nd %ile
- Below average user sentiment (11th percentile)11th %ile
- Below average social proof (17th percentile)17th %ile
Verdict
Scores 88 overall, wins 8 of 9 usage categories and 7 of 22 specs.