Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
91 Overall Score
vs
Pentax DA 21987 35mm
Pentax
43 Overall Score
Scores
Street
Professional
Macro
Travel
Budget
Video Cinema
Portrait
Landscape
Wildlife Sports
Specifications
| Sigma Contemporary 18-50mm f/2.8 DC DN | Pentax DA 21987 35mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 35 mm |
| Focal Length Max | 50 mm | 35 mm |
| Elements | 13 | 6 |
| Groups | 10 | 5 |
| Aspherical Elements | 3★ | 1 |
| ED Elements | 1★ | — |
| Coating | Super Multi-Layer Coating | PENTAX Super Protect (SP) coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | f/2.4 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7★ | 6 |
| Build | ||
| Mount | Sony E | Pentax K |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.29 kg | 0.12 kg★ |
| Filter Thread | 55 mm | 49 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | Autofocus |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 122 mm★ | 300 mm |
| Max Magnification | 1:2.8★ | 0.17x |
Pros & Cons
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (91st percentile)91st %ile
- Strong af (87th percentile)87th %ile
- Strong build (87th percentile)87th %ile
- Strong optical (83rd percentile)83rd %ile
- Below average social proof (21st percentile)
Pentax DA 21987 35mm
- Strong build (95th percentile)95th %ile
- Strong social proof (82nd percentile)82nd %ile
- Below average bokeh (6th percentile)6th %ile
- Below average aperture (19th percentile)19th %ile
- Below average user sentiment (30th percentile)
- Below average versatility (34th percentile)
Pricing
Sigma Contemporary 18-50mm f/2.8 DC DN0.121score per dollar
vs
Pentax DA 21987 35mm0.240score per dollar
Pentax DA 21987 35mm offers 2.0x better value for money
Verdict
Winner: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 91 overall, wins 9 of 9 usage categories and 7 of 21 specs.
