Sigma Contemporary 18-50mm f/2.8 DC DN
Canon RF28-70mm F2.8 IS STM 28-70mm
What Buyers Say
Sigma Contemporary 18-50mm f/2.8 DC DN
The Sigma 18-50mm f/2.8 DC DN Contemporary is widely praised as a compact, lightweight, and sharp standard zoom for APS-C mirrorless cameras. Users consistently highlight its excellent image quality, fast f/2.8 aperture, and affordable price as major strengths, making it a popular upgrade from kit lenses. Common criticisms include the lack of optical stabilization and a poorly designed lens hood, but overall sentiment is overwhelmingly positive.
Pros
- Excellent image sharpness
- Compact and lightweight design
- Fast f/2.8 constant aperture
- Great value for the price
- Fast and silent autofocus
Cons
- No optical image stabilization
- Poorly designed lens hood
- No weather sealing
- Plastic build quality
- Zoom ring direction opposite to Fujifilm
Canon RF28-70mm F2.8 IS STM 28-70mm
This lens is highly praised for its sharpness, lightweight design, and versatility, making it an excellent mid-range zoom for travel and low-light photography. Users appreciate its compatibility with Canon R-series cameras and its ability to deliver professional-quality images. The only minor drawback mentioned is the limited zoom range, but reviewers agree it is the most compact and light option available.
Pros
- Sharp image quality
- Lightweight and compact design
- Versatile mid-range zoom
- Excellent low-light performance
- Fast and accurate autofocus
Cons
- Limited zoom range
- High price for some users
Scores
Specifications
| Sigma Contemporary 18-50mm f/2.8 DC DN | Canon RF28-70mm F2.8 IS STM 28-70mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 18 mm | 28 mm |
| Focal Length Max | 50 mm | 70 mm |
| Elements | 13 | 15 |
| Groups | 10 | 12 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 1 | 2★ |
| Coating | Super Multi-Layer Coating | Super Spectra Coating (SSC) |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Canon RF |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 0.49 kg |
| Filter Thread | 55 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | STM★ |
| Stabilization | ✗ | ✓★ |
| Stabilization Stops | — | 5.5 stops★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 239 mm |
| Max Magnification | 1:2.8 | 1:4.2 |
Pros & Cons
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (92nd percentile)92nd %ile
- Strong social proof (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (86th percentile)86th %ile
Canon RF28-70mm F2.8 IS STM 28-70mm
- Strong stabilization (99th percentile)99th %ile
- Strong user sentiment (98th percentile)98th %ile
- Strong social proof (90th percentile)90th %ile
- Strong optical (86th percentile)86th %ile
- Below average aperture (22nd percentile)
- Below average bokeh (25th percentile)
Pricing
Sigma Contemporary 18-50mm f/2.8 DC DN offers 2.1x better value for money
Verdict
Scores 99 overall, wins 7 of 9 usage categories and 3 of 22 specs.
