Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
Viltrox Air AF 9mm f/2.8 Air 9mm
Viltrox
73 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
Viltrox Air AF 9mm f/2.8 Air 9mm
85 满分 100 置信度中 13 条评价
适用于富士X卡口的Viltrox 23mm f/1.4镜头因其锐度、快速安静的自动对焦以及以实惠价格提供的出色做工而获得压倒性的正面评价。少数用户注意到缺少光圈环和轻微的边缘柔化，但大多数人认为与富士胶片等效镜头相比，它具有很高的性价比。一位买家收到了错误的遮光罩，另一位用户则认为它较重且不如Viltrox 35mm Air锐利。
优点
- 出色的锐度
- 快速安静的自动对焦
- 价格合理的出色做工
- 与富士胶片相比性价比高
- 漂亮的色彩还原
缺点
- 无光圈环
- 轻微边缘柔化
- 对某些用户来说较重
- 收到错误的遮光罩
- 不如Viltrox 35mm Air锐利
Sharpness 7
Autofocus performance 3
Build quality 4
Value for money 5
Aperture ring 3
Weight 2
评分
Travel
Budget
Street
Professional
Portrait
Macro
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Viltrox Air AF 9mm f/2.8 Air 9mm | |
|---|---|---|
| Optics | ||
| Type | zoom | wide-angle |
| Focal Length Min | 18 mm | 9 mm |
| Focal Length Max | 50 mm | 9 mm |
| Elements | 13 | 13 |
| Groups | 10 | 11 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 1 | 3★ |
| Coating | Super Multi-Layer Coating | Specialized Multi-Layer Coating Technology |
| Aperture | ||
| Max Aperture | f/2.8 | f/16 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7★ | — |
| Build | ||
| Mount | Sony E | Fujifilm X |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg | 0.17 kg★ |
| Filter Thread | 55 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | STM + Lead screw focus motor★ |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 130 mm |
| Max Magnification | 1:2.8★ | 0.13 m |
优缺点
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (92nd percentile)92nd %ile
- Strong social proof (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (86th percentile)86th %ile
Viltrox Air AF 9mm f/2.8 Air 9mm
- Strong build (95th percentile)95th %ile
- Strong social proof (90th percentile)90th %ile
- Strong af (86th percentile)86th %ile
- Strong optical (84th percentile)84th %ile
- Below average bokeh (31st percentile)
- Below average versatility (34th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.173每美元得分
vs
Viltrox Air AF 9mm f/2.8 Air 9mm0.367每美元得分
Viltrox Air AF 9mm f/2.8 Air 9mm 性价比高 2.1 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 8 of 9 usage categories and 4 of 21 specs.
