Sirui Saturn RF50B-A 50mm
Sirui
52 综合评分
vs
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm
Tamron
97 综合评分
评分
Video Cinema
Budget
Macro
Professional
Travel
Portrait
Landscape
Street
Wildlife Sports
规格
| Sirui Saturn RF50B-A 50mm | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm | |
|---|---|---|
| Optics | ||
| Type | prime | zoom |
| Focal Length Min | 50 mm | 17 mm |
| Focal Length Max | 50 mm | 70 mm |
| Elements | 17 | 16 |
| Groups | 12 | 12 |
| Aspherical Elements | — | 3★ |
| ED Elements | — | 2★ |
| Coating | — | Fluorine Coating |
| Aperture | ||
| Max Aperture | T16 | f/2.8 |
| Min Aperture | T2.9 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 10★ | 9 |
| Build | ||
| Mount | Canon RF | Sony E |
| Format | full-frame★ | APS-C |
| Weather Sealed | — | ✓★ |
| Weight | 0.47 kg★ | 0.54 kg |
| Filter Thread | 62 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | Manual Focus | RXD |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 900 mm | 190 mm★ |
| Max Magnification | 1:16.2 | 1:4.8 |
优缺点
Sirui Saturn RF50B-A 50mm
- Strong stabilization (82nd percentile)82nd %ile
- Strong user sentiment (81st percentile)81st %ile
- Strong optical (69th percentile)
- Below average af (13th percentile)13th %ile
- Below average versatility (34th percentile)
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm
- Strong optical (91st percentile)91st %ile
- Strong versatility (90th percentile)90th %ile
- Strong bokeh (87th percentile)87th %ile
- Strong macro (86th percentile)86th %ile
价格
Sirui Saturn RF50B-A 50mm0.094每美元得分
vs
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm0.119每美元得分
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm 性价比高 1.3 倍
结论
胜出: Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm
Scores 97 overall, wins 9 of 9 usage categories and 4 of 21 specs.
