Canon RF 28-70mm f/2.8 IS STM
Sigma Art 50mm f/1.4 DG HSM 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
Sigma Art 50mm f/1.4 DG HSM 50mm
The Sigma 50mm f/1.4 Art lens is widely praised for its exceptional sharpness, beautiful bokeh, and fast, quiet autofocus. Users consistently highlight its premium build quality and excellent value compared to first-party alternatives like Canon L or Nikon G lenses. While many note it is heavier and larger than typical 50mm primes, the image quality and performance are considered well worth the trade-off. A few users mention potential autofocus inconsistencies in low light or with older firmware, but overall sentiment is overwhelmingly positive.
Pros
- Exceptional sharpness
- Beautiful bokeh
- Fast and quiet autofocus
- Premium build quality
- Great value for money
Cons
- Heavy and bulky
- Autofocus hunts in low light
- Soft edges at f/1.4
- Potential front/back focus issues
- Firmware compatibility concerns
Scores
Specifications
| Canon RF 28-70mm f/2.8 IS STM | Sigma Art 50mm f/1.4 DG HSM 50mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 28 mm | 50 mm |
| Focal Length Max | 70 mm | 50 mm |
| Elements | 14 | 14 |
| Groups | 11 | 11 |
| Aspherical Elements | 2 | 3★ |
| ED Elements | 2★ | 1 |
| Coating | Super Spectra Coating (SSC) | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/16 |
| Min Aperture | f/2.8 | f/1.4 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | — | 9★ |
| Build | ||
| Mount | Canon RF | Nikon F |
| Format | full-frame | full-frame |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.49 kg★ | 0.81 kg |
| Filter Thread | 67 mm | 77 mm |
| AF & Stabilization | ||
| AF Type | STM★ | HSM |
| Stabilization | ✓★ | ✗ |
| Stabilization Stops | 5.5 stops★ | — |
| Focus | ||
| Min Focus Distance | 270 mm★ | 400 mm |
| Max Magnification | 0.24x | 1:6.8★ |
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
Sigma Art 50mm f/1.4 DG HSM 50mm
- Strong social proof (91st percentile)91st %ile
- Strong optical (85th percentile)85th %ile
- Strong user sentiment (82nd percentile)82nd %ile
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
Pricing
Sigma Art 50mm f/1.4 DG HSM 50mm offers 2.0x better value for money
Verdict
Scores 88 overall, wins 9 of 9 usage categories and 6 of 22 specs.
