Big Mike's SLY500 500mm
Big Mike's
37 综合评分
vs
Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 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
Sigma Contemporary 18-50mm f/2.8 DC DN
88 满分 100 置信度高 91 条评价
Sigma 18-50mm f/2.8 DC DN Contemporary 被广泛称赞为 APS-C 无反相机的一款紧凑、轻便且锐利的标准变焦镜头。用户一致强调其出色的图像质量、快速的 f/2.8 光圈和实惠的价格是主要优势，使其成为套机镜头的热门升级选择。常见的批评包括缺乏光学防抖和遮光罩设计不佳，但总体情绪极为积极。
优点
- 出色的图像锐度
- 紧凑轻巧的设计
- 快速恒定的 f/2.8 光圈
- 物超所值
- 快速安静的自动对焦
缺点
- 无光学防抖
- 遮光罩设计不佳
- 无防尘防滴
- 塑料制造工艺
- 变焦环方向与富士相反
Image quality 25
Build quality 12
Value for money 18
Size and weight 20
Autofocus performance 10
Stabilization 8
评分
Travel
Budget
Street
Professional
Portrait
Macro
Video Cinema
Landscape
Wildlife Sports
规格
| Big Mike's SLY500 500mm | Sigma Contemporary 18-50mm f/2.8 DC DN | |
|---|---|---|
| Optics | ||
| Type | telephoto | zoom |
| Focal Length Min | 500 mm | 18 mm |
| Focal Length Max | 1000 mm | 50 mm |
| Elements | — | 13 |
| Groups | — | 10 |
| Aspherical Elements | — | 3★ |
| ED Elements | — | 1★ |
| Coating | multi-coated | Super Multi-Layer 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 | — | APS-C★ |
| Weather Sealed | — | ✓★ |
| Weight | 1.16 kg | 0.29 kg★ |
| Filter Thread | 67 mm | 55 mm |
| AF & Stabilization | ||
| AF Type | manual focus only | stepping motor★ |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 500 mm | 121 mm★ |
| Max Magnification | — | 1:2.8★ |
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
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (91st percentile)91st %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (87th percentile)87th %ile
- Strong af (86th percentile)86th %ile
价格
Big Mike's SLY500 500mm
No current pricing available
Sigma Contemporary 18-50mm f/2.8 DC DN
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 9 of 9 usage categories and 9 of 21 specs.
