Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
98 التقييم العام
مقابل
Rokinon RK20M-C 20mm
Rokinon
42 التقييم العام
التقييمات
Travel
Street
Budget
Professional
Macro
Video Cinema
Portrait
Landscape
Wildlife Sports
المواصفات
| Sigma Contemporary 18-50mm f/2.8 DC DN | Rokinon RK20M-C 20mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 20 mm |
| Focal Length Max | 50 mm | 20 mm |
| Elements | 13 | 13 |
| Groups | 10 | 12 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 1 | 3★ |
| Coating | Super Multi-Layer Coating | Ultra Multi-Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | f/1.8 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Canon EF |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.29 kg★ | 0.50 kg |
| Filter Thread | 55 mm | 77 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | manual focus only |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 200 mm |
| Max Magnification | 1:2.8★ | — |
الإيجابيات والسلبيات
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (92nd percentile)92nd %ile
- Strong social proof (90th percentile)90th %ile
- Strong af (87th percentile)87th %ile
- Strong build (86th percentile)86th %ile
Rokinon RK20M-C 20mm
- Strong optical (86th percentile)86th %ile
- Strong macro (84th percentile)84th %ile
- Below average bokeh (13th percentile)13th %ile
- Below average af (13th percentile)13th %ile
- Below average aperture (20th percentile)20th %ile
- Below average versatility (34th percentile)
الأسعار
Sigma Contemporary 18-50mm f/2.8 DC DN0.131نقاط لكل دولار
مقابل
Rokinon RK20M-C 20mm0.077نقاط لكل دولار
Sigma Contemporary 18-50mm f/2.8 DC DN يقدم قيمة أفضل بـ 1.7x مقابل المال
الحكم النهائي
الفائز: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 98 overall, wins 9 of 9 usage categories and 7 of 21 specs.
