Canon RF 28-70mm f/2.8 IS STM
Tamron SP AFA005S-700 70-300mm
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 SP AFA005S-700 70-300mm
Reviewers overwhelmingly praise the Tamron 70-300mm lens for its excellent value for money, delivering sharp images and solid build quality at a fraction of the cost of brand-name alternatives. Many users highlight its impressive performance for wildlife and bird photography, although some note that the autofocus can be slow in low light and there are occasional issues with chromatic aberration. While a few mention the lack of image stabilization on certain models, most find it manageable with steady hands or a tripod.
Pros
- Excellent value for money
- Sharp image quality throughout zoom range
- Solid build and sturdy construction
- Good for wildlife and bird photography
- Effective vibration compensation (VC)
Cons
- Slow autofocus in low light
- Occasional chromatic aberration (purple/green fringing)
- No vibration reduction on some models
- Autofocus can hunt and struggle on small subjects
- Zoom ring not always smooth
Scores
Specifications
| Canon RF 28-70mm f/2.8 IS STM | Tamron SP AFA005S-700 70-300mm | |
|---|---|---|
| Optics | ||
| Type | zoom | telephoto |
| Focal Length Min | 28 mm | 70 mm |
| Focal Length Max | 70 mm | 300 mm |
| Elements | 14 | 13 |
| Groups | 11 | 9 |
| Aspherical Elements | 2★ | — |
| ED Elements | 2 | 2 |
| Coating | Super Spectra Coating (SSC) | — |
| Aperture | ||
| Max Aperture | f/2.8 | f/32 |
| Min Aperture | f/2.8 | 4.0-5.6 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | — | 9★ |
| Build | ||
| Mount | Canon RF | Sony A |
| Format | full-frame | full-frame |
| Weather Sealed | ✓★ | — |
| Weight | 0.49 kg★ | 0.77 kg |
| Filter Thread | 67 mm | 62 mm |
| AF & Stabilization | ||
| AF Type | STM★ | Autofocus |
| Stabilization | ✓ | ✓ |
| Stabilization Stops | 5.5 stops★ | — |
| Focus | ||
| Min Focus Distance | 270 mm★ | 950 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 SP AFA005S-700 70-300mm
- Strong versatility (91st percentile)91st %ile
- Strong social proof (81st percentile)81st %ile
- Strong stabilization (79th percentile)
- Strong user sentiment (66th percentile)
- Below average aperture (5th percentile)5th %ile
- Below average bokeh (8th percentile)8th %ile
- Below average build (23rd percentile)
Verdict
Scores 88 overall, wins 9 of 9 usage categories and 7 of 22 specs.