Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
98 综合评分
vs
Viltrox AF 56mm F1.7 Air 56mm
Viltrox
76 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 AF 56mm F1.7 Air 56mm
85 满分 100 置信度中 23 条评价
Viltrox 56mm f/1.7 因其出色的锐度、轻巧的设计和卓越的性价比而广受赞誉。用户一致强调其令人印象深刻的图像质量，细节清晰，散景宜人，并经常将其与价格高得多的镜头进行有利比较。虽然自动对焦在人像和静态摄影中通常可靠，但一些用户指出它可能噪音较大，且不如富士原生镜头快速。有少数关于进灰和塑料材质的担忧被提及，但总体评价极为正面。
优点
- 出色的锐度
- 轻巧紧凑的设计
- 卓越的性价比
- 令人愉悦的散景
- 良好的弱光性能
缺点
- 自动对焦噪音（部分用户）
- 自动对焦比原生镜头慢
- 塑料材质
- 有进灰报告
- 无物理光圈环
Image quality 18
Value for money 15
Build quality 12
Autofocus performance 11
Size and weight 10
Bokeh 7
评分
Travel
Budget
Street
Professional
Video Cinema
Portrait
Macro
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Viltrox AF 56mm F1.7 Air 56mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 56 mm |
| Focal Length Max | 50 mm | 56 mm |
| Elements | 13 | 11 |
| Groups | 10 | 9 |
| Aspherical Elements | 3★ | — |
| ED Elements | 1 | 1 |
| Coating | Super Multi-Layer Coating | multi-layer coatings |
| Aperture | ||
| Max Aperture | f/2.8 | f/1.7 |
| Min Aperture | f/2.8 | f/1.7 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Fujifilm X |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg | 0.19 kg★ |
| Filter Thread | 55 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | autofocus |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 121 mm | 56 mm★ |
| Max Magnification | 1:2.8★ | 0.11X |
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 AF 56mm F1.7 Air 56mm
- Strong bokeh (96th percentile)96th %ile
- Strong aperture (95th percentile)95th %ile
- Strong build (94th percentile)94th %ile
- Strong stabilization (80th percentile)80th %ile
- Below average social proof (17th percentile)17th %ile
- Below average versatility (34th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.212每美元得分
vs
Viltrox AF 56mm F1.7 Air 56mm0.431每美元得分
Viltrox AF 56mm F1.7 Air 56mm 性价比高 2.0 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 98 overall, wins 8 of 9 usage categories and 3 of 21 specs.
