Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
7Artisans 50mm F1.4 APS-C Frame Tilt-Shift
7Artisans
64 综合评分
买家怎么说
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
7Artisans 50mm F1.4 APS-C Frame Tilt-Shift
45 满分 100 置信度低 6 条评价
7Artisans 50mm f/1.4 移轴镜头收到了用户褒贬不一的反馈。一位经过验证的评论者称赞其倾斜功能可用于调整焦点和过渡，在高像素传感器上具有出色的分辨率和对比度，但发现其平移范围不足以用于建筑摄影。另一位评论者批评玻璃质量"不太好"，并认为价格反映了做工。总体而言，该镜头在特定的倾斜应用中表现出色，但在一般光学性能上令人失望。
优点
- 出色的倾斜功能
- 良好的分辨率和对比度
- 低色差
- 在高像素传感器上表现良好
- 适用于静物和桌面摄影
缺点
- 玻璃质量差
- 平移范围不足以用于建筑摄影
- 价格与做工质量不匹配
Tilt functionality 1
Glass quality 1
Shift range 1
Resolution and contrast 1
Value for money 1
Chromatic aberration 1
评分
Travel
Budget
Street
Professional
Portrait
Macro
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | 7Artisans 50mm F1.4 APS-C Frame Tilt-Shift | |
|---|---|---|
| Optics | ||
| Type | zoom | tilt-shift |
| Focal Length Min | 18 mm | 50 mm |
| Focal Length Max | 50 mm | 50 mm |
| Elements | 13 | 7 |
| Groups | 10 | 6 |
| Aspherical Elements | 3★ | — |
| ED Elements | 1★ | — |
| Coating | Super Multi-Layer Coating | multi-coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/1.4 |
| Min Aperture | f/2.8 | f/1.4 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 12★ |
| Build | ||
| Mount | Sony E | Micro Four Thirds |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | — |
| Weight | 0.29 kg★ | 0.36 kg |
| Filter Thread | 55 mm | 46 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | manual focus only |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 121 mm | 50 mm★ |
| Max Magnification | 1:2.8★ | — |
优缺点
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (91st percentile)91st %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
7Artisans 50mm F1.4 APS-C Frame Tilt-Shift
- Strong bokeh (99th percentile)99th %ile
- Strong aperture (97th percentile)97th %ile
- Strong macro (96th percentile)96th %ile
- Strong stabilization (80th percentile)80th %ile
- Below average user sentiment (2nd percentile)2nd %ile
- Below average af (15th percentile)15th %ile
- Below average versatility (34th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.001每美元得分
vs
7Artisans 50mm F1.4 APS-C Frame Tilt-Shift0.002每美元得分
7Artisans 50mm F1.4 APS-C Frame Tilt-Shift 性价比高 2.0 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 9 of 9 usage categories and 6 of 21 specs.
