Sigma Contemporary 18-50mm f/2.8 DC DN
Pentax DA 21880 18-55mm
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
Pentax DA 21880 18-55mm
The Pentax DA 18-55mm f/3.5-5.6 AL WR Zoom Lens is praised for its weather resistance, versatility, and good image quality, especially for daytime photography and low-light indoor use. Users appreciate its durability and value as a general-purpose kit lens, though some note it is optically just a kit lens with limitations in sharpness and speed. Delivery delays were mentioned but attributed to postal services, not the product itself.
Pros
- Weather resistant design
- Versatile for portrait and landscape
- Good image quality for kit lens
- Clear macro and wide-angle shots
- Vivid colors
Cons
- Optically just a kit lens
- Limited sharpness compared to better lenses
- Slower aperture (f/3.5-5.6)
- Delivery delays (postal service)
Scores
Specifications
| Sigma Contemporary 18-50mm f/2.8 DC DN | Pentax DA 21880 18-55mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 18 mm | 18 mm |
| Focal Length Max | 50 mm | 55 mm |
| Elements | 13 | 11 |
| Groups | 10 | 8 |
| Aspherical Elements | 3★ | 0 |
| ED Elements | 1★ | — |
| Coating | Super Multi-Layer Coating | SP (Super Protect) coating |
| Aperture | ||
| Max Aperture | f/2.8 | 22-38★ |
| Min Aperture | f/2.8 | 3.5-5.6 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7★ | 6 |
| Build | ||
| Mount | Sony E | Pentax K |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg | 0.23 kg★ |
| Filter Thread | 55 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | Autofocus |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 250 mm |
| Max Magnification | 1:2.8 | 1:2.94 |
Pros & Cons
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (91st percentile)91st %ile
- Strong macro (89th percentile)89th %ile
- Strong aperture (88th percentile)88th %ile
- Strong bokeh (86th percentile)86th %ile
- Below average stabilization (34th percentile)
Pentax DA 21880 18-55mm
- Strong build (88th percentile)88th %ile
- Strong versatility (83rd percentile)83rd %ile
- Strong social proof (76th percentile)
- Strong macro (75th percentile)
- Below average bokeh (6th percentile)6th %ile
- Below average aperture (22nd percentile)
- Below average user sentiment (30th percentile)
- Below average stabilization (34th percentile)
Pricing
Sigma Contemporary 18-50mm f/2.8 DC DN
Pentax DA 21880 18-55mm
No current pricing available
Verdict
Scores 99 overall, wins 9 of 9 usage categories and 6 of 21 specs.
