Tamron Di III F050 20mm
Sigma Contemporary 45mm f/2.8 DG DN 45mm
评分
规格
| Tamron Di III F050 20mm | Sigma Contemporary 45mm f/2.8 DG DN 45mm | |
|---|---|---|
| Optics | ||
| Type | prime | — |
| Focal Length Min | 20 mm | 45 mm |
| Focal Length Max | 20 mm | 45 mm |
| Elements | 10 | — |
| Groups | 9 | — |
| Aspherical Elements | 1★ | — |
| ED Elements | 3★ | — |
| Coating | Fluorine Coating, Broad-Band Anti-Reflection Coating | — |
| Aperture | ||
| Max Aperture | f/2.8 | f/2.8 |
| Min Aperture | f/2.8 | — |
| Constant | ✓★ | — |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Sony E |
| Format | full-frame★ | — |
| Weather Sealed | ✓★ | — |
| Weight | 0.23 kg★ | 4.13 kg |
| Filter Thread | 67 mm | 55 mm |
| AF & Stabilization | ||
| AF Type | OSD | Autofocus |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 119 mm★ | — |
| Max Magnification | 1:2★ | — |
优缺点
Tamron Di III F050 20mm
- Strong macro (92nd percentile)92nd %ile
- Strong build (91st percentile)91st %ile
- Strong aperture (83rd percentile)83rd %ile
- Strong bokeh (81st percentile)81st %ile
- Below average versatility (34th percentile)
Sigma Contemporary 45mm f/2.8 DG DN 45mm
- Strong aperture (83rd percentile)83rd %ile
- Strong bokeh (81st percentile)81st %ile
- Below average build (5th percentile)5th %ile
- Below average macro (14th percentile)14th %ile
- Below average optical (20th percentile)20th %ile
- Below average social proof (31st percentile)
价格
Tamron Di III F050 20mm
Sigma Contemporary 45mm f/2.8 DG DN 45mm
结论
Scores 78 overall, wins 9 of 9 usage categories and 8 of 21 specs.