Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
98 综合评分
vs
Viltrox Air AF 9mm F2.8 Air E 9mm
Viltrox
57 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 F2.8 Air E 9mm
82 满分 100 置信度高 51 条评价
Viltrox镜头因其卓越的性价比、锐利的图像质量和坚固的构造而获得压倒性的好评。用户称赞其大光圈和自动对焦性能，尽管有些人指出在高对比度场景中存在色差，以及某些型号的自动对焦噪音较大。总体而言，这些镜头被视为预算友好的替代品，性能远超其价格。
优点
- 卓越的性价比
- 全开光圈时图像锐利
- 坚固的金属结构
- 快速准确的自动对焦
- 令人愉悦的虚化效果
缺点
- 高对比度下的色差
- 视频中自动对焦噪音大
- 低光下自动对焦慢
- 无防风雨密封
- 在小机身上头重脚轻
Value for money 18
Image quality 20
Build quality 12
Autofocus performance 15
Bokeh 6
Low light performance 8
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 F2.8 Air E 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 | HD multilayer nano coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/16 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Sony E |
| 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★ |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 130 mm |
| Max Magnification | 1:2.8★ | 0.15x |
优缺点
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (90th percentile)90th %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
Viltrox Air AF 9mm F2.8 Air E 9mm
- Strong build (87th percentile)87th %ile
- Strong af (85th percentile)85th %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 DN
Viltrox Air AF 9mm F2.8 Air E 9mm
No current pricing available
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 98 overall, wins 9 of 9 usage categories and 4 of 21 specs.
