Canon RF 28-70mm f/2.8 IS STM
Tamron Di III F050 20mm
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
Tamron Di III F050 20mm
The Tamron 20mm f/2.8 lens for Sony E-mount is widely praised for its excellent value, sharp image quality, and compact design. Users highlight its close-focusing ability and good performance for landscapes and astrophotography, though some note the autofocus is noisy and a bit slow, especially for video. Overall, it is considered a great budget-friendly wide-angle prime that delivers impressive results for the price.
Pros
- Excellent value for money
- Sharp image quality
- Compact and lightweight design
- Good close-focusing capability
- Great for landscapes and astrophotography
Cons
- Noisy autofocus motor
- Slow autofocus for video
- Lacks weather sealing
- Feels a bit cheap to some
- Not as wide as f/1.8
Scores
Specifications
| Canon RF 28-70mm f/2.8 IS STM | Tamron Di III F050 20mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 28 mm | 20 mm |
| Focal Length Max | 70 mm | 20 mm |
| Elements | 14 | 10 |
| Groups | 11 | 9 |
| Aspherical Elements | 2★ | 1 |
| ED Elements | 2 | 3★ |
| Coating | Super Spectra Coating (SSC) | Fluorine Coating for protection and safe cleaning |
| Aperture | ||
| Max Aperture | f/2.8 | f/2.8 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | — | 7★ |
| Build | ||
| Mount | Canon RF | Sony E |
| Format | full-frame | full-frame |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.49 kg | 0.23 kg★ |
| Filter Thread | 67 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | STM★ | OSD |
| Stabilization | ✓★ | ✗ |
| Stabilization Stops | 5.5 stops★ | — |
| Focus | ||
| Min Focus Distance | 270 mm | 109 mm★ |
| Max Magnification | 0.24x | 1:2★ |
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
Tamron Di III F050 20mm
- Strong macro (90th percentile)90th %ile
- Strong build (89th percentile)89th %ile
- Strong aperture (88th percentile)88th %ile
- Strong bokeh (87th percentile)87th %ile
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
Verdict
Scores 88 overall, wins 8 of 9 usage categories and 4 of 22 specs.