Canon RF 28-70mm f/2.8 IS STM
Canon
88 Overall Score
vs
Sigma Contemporary 18-300mm f/3.5-6.3 DC Macro OS HSM
Sigma
87 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 Contemporary 18-300mm f/3.5-6.3 DC Macro OS HSM
No customer feedback yet
Scores
Professional
Video Cinema
Portrait
Street
Budget
Travel
Macro
Wildlife Sports
Landscape
Specifications
| Canon RF 28-70mm f/2.8 IS STM | Sigma Contemporary 18-300mm f/3.5-6.3 DC Macro OS HSM | |
|---|---|---|
| Optics | ||
| Type | zoom | macro |
| Focal Length Min | 28 mm | 18 mm |
| Focal Length Max | 70 mm | 300 mm |
| Elements | 14 | 8 |
| Groups | 11 | — |
| Aspherical Elements | 2 | 3★ |
| ED Elements | 2 | 5★ |
| Coating | Super Spectra Coating (SSC) | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/3.5 |
| Min Aperture | f/2.8 | 3.5-6.3 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | — | 7★ |
| Build | ||
| Mount | Canon RF | Nikon F |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓★ | — |
| Weight | 0.49 kg | 0.12 kg★ |
| Filter Thread | 67 mm | 72 mm |
| AF & Stabilization | ||
| AF Type | STM★ | HSM |
| Stabilization | ✓ | ✓ |
| Stabilization Stops | 5.5 stops★ | — |
| Focus | ||
| Min Focus Distance | 270 mm★ | 396 mm |
| Max Magnification | 0.24x | 1:3★ |
Pros & Cons
Canon RF 28-70mm f/2.8 IS STM
- Strong stabilization (98th percentile)98th %ile
- Strong aperture (88th percentile)88th %ile
- Strong bokeh (86th percentile)86th %ile
- Strong user sentiment (86th percentile)86th %ile
Sigma Contemporary 18-300mm f/3.5-6.3 DC Macro OS HSM
- Strong versatility (99th percentile)99th %ile
- Strong build (93rd percentile)93rd %ile
- Strong aperture (82nd percentile)82nd %ile
- Strong bokeh (80th percentile)80th %ile
Pricing
Canon RF 28-70mm f/2.8 IS STM0.080score per dollar
vs
Sigma Contemporary 18-300mm f/3.5-6.3 DC Macro OS HSM0.115score per dollar
Sigma Contemporary 18-300mm f/3.5-6.3 DC Macro OS HSM offers 1.4x better value for money
Verdict
Tie
Both products are closely matched - Canon RF 28-70mm f/2.8 IS STM wins 6 specs while Sigma Contemporary 18-300mm f/3.5-6.3 DC Macro OS HSM wins 5.
