Big Mike's SLY500 500mm
Big Mike's
37 综合评分
vs
Viltrox AF 20mm F2.8 FE 20mm
Viltrox
87 综合评分
买家怎么说
Big Mike's SLY500 500mm
62 满分 100 置信度低 8 条评价
这款廉价长焦镜头收到了褒贬不一的评价。许多用户称赞其性价比，指出对于偶尔使用（如拍摄月亮）来说，对焦清晰，画质尚可。然而，几位经过验证的买家报告了对焦偏软、灰尘污染和做工质量差的问题，尤其是在使用2倍增距镜时。它最适合那些有现实期望并愿意使用三脚架和手动对焦的用户。
优点
- 性价比极高
- 偶尔使用对焦清晰
- 三脚架上画质尚可
- 适合拍摄月亮和日食
- 适配器和转换器加工牢固
缺点
- 部分产品对焦偏软
- 2倍增距镜导致灰尘污染
- 需要大量光线（最大光圈f/8）
- 无防抖功能
- 适配器缺少后盖
Value for money 5
Image quality 6
Focus performance 4
Build quality 4
Light requirements 3
Dust contamination 2
Viltrox AF 20mm F2.8 FE 20mm
暂无用户反馈
评分
Street
Macro
Portrait
Budget
Video Cinema
Professional
Wildlife Sports
Travel
Landscape
规格
| Big Mike's SLY500 500mm | Viltrox AF 20mm F2.8 FE 20mm | |
|---|---|---|
| Optics | ||
| Type | telephoto | wide-angle |
| Focal Length Min | 500 mm | 20 mm |
| Focal Length Max | 1000 mm | 20 mm |
| Elements | — | 10 |
| Groups | — | 8 |
| Aspherical Elements | — | 2★ |
| ED Elements | — | 2★ |
| Coating | multi-coated | multi-layer nano-MC coating |
| Aperture | ||
| Max Aperture | f/8 | f/2.8 |
| Min Aperture | f/8 | f/2.8 |
| Constant | ✓★ | — |
| Diaphragm Blades | — | 7★ |
| Build | ||
| Mount | T Mount | Sony E |
| Format | — | full-frame★ |
| Weight | 1.16 kg | 0.16 kg★ |
| Filter Thread | 67 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | manual focus only | STM★ |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 500 mm | 20 mm★ |
| Max Magnification | — | 0.17X★ |
优缺点
Big Mike's SLY500 500mm
- Strong stabilization (81st percentile)81st %ile
- Strong versatility (72nd percentile)
- Below average user sentiment (6th percentile)6th %ile
- Below average af (14th percentile)14th %ile
- Below average build (15th percentile)15th %ile
Viltrox AF 20mm F2.8 FE 20mm
- Strong macro (91st percentile)91st %ile
- Strong build (89th percentile)89th %ile
- Strong aperture (87th percentile)87th %ile
- Strong social proof (86th percentile)86th %ile
- Below average versatility (34th percentile)
结论
胜出: Viltrox AF 20mm F2.8 FE 20mm
Scores 87 overall, wins 9 of 9 usage categories and 8 of 20 specs.