Canon RF 28-70mm f/2.8 IS STM
Tamron SP AFB005NII-700 17-50mm
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 AFB005NII-700 17-50mm
The Tamron 17-50mm F/2.8 lens is widely praised as a sharp, versatile upgrade over kit lenses with effective vibration compensation. Users love its constant aperture for low-light and portrait work, though some report quality control issues like back focus or poor factory cleaning. A few note noise from the VC mechanism and slightly slower focusing, but overall it's considered excellent value, especially compared to pricier brand-name equivalents.
Pros
- Sharp images even wide open
- Effective vibration compensation
- Constant F/2.8 aperture
- Great value for money
- Versatile for indoor/outdoor use
Cons
- Noisy vibration compensation
- Some quality control issues
- Back focus problems reported
- No weather sealing
- Slower autofocus motor
Scores
Specifications
| Canon RF 28-70mm f/2.8 IS STM | Tamron SP AFB005NII-700 17-50mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 28 mm | 17 mm |
| Focal Length Max | 70 mm | 50 mm |
| Elements | 14 | 13 |
| Groups | 11 | 16 |
| Aspherical Elements | 2 | 2 |
| ED Elements | 2★ | 1 |
| Coating | Super Spectra Coating (SSC) | Internal Surface Coatings |
| 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 | Nikon F |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓★ | — |
| Weight | 0.49 kg★ | 0.57 kg |
| Filter Thread | 67 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | STM★ | Built in motor |
| Stabilization | ✓ | ✓ |
| Stabilization Stops | 5.5 stops★ | — |
| Focus | ||
| Min Focus Distance | 270 mm | 270 mm |
| Max Magnification | 0.24x | 1:4.8★ |
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 AFB005NII-700 17-50mm
- Strong aperture (88th percentile)88th %ile
- Strong bokeh (87th percentile)87th %ile
- Strong optical (84th percentile)84th %ile
- Strong versatility (81st percentile)81st %ile
Verdict
Scores 88 overall, wins 8 of 9 usage categories and 6 of 22 specs.