Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
AstrHori 6.5mm F2.0 6mm
AstrHori
49 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
AstrHori 6.5mm F2.0 6mm
72 满分 100 置信度低 8 条评价
这款手动鱼眼镜头提供独特的圆形图像和强烈的畸变，许多用户喜欢它用于创意拍摄，如滑板视频和旅行照片。做工质量因价格而受到称赞，但在佳能无反和全画幅相机上的兼容性问题是一个明显的缺点。由于仅手动设计和在宽光圈下景深较浅，对焦很棘手。总的来说，对于了解其局限性的人来说，这是一个有趣且价格合理的镜头。
优点
- 价格合理的坚固做工质量
- 有趣的创意鱼眼效果
- 紧凑便携
- 物有所值
- 中心图像清晰
缺点
- 仅手动对焦，使用棘手
- 与佳能无反相机的兼容性问题
- 在全画幅相机上图像圈小
- 无自动对焦
- 无法使用镜头滤镜
Build quality 4
Value for money 5
Manual focus difficulty 4
Compatibility issues 3
Image circle size 2
Creative effect 4
评分
Travel
Budget
Street
Professional
Portrait
Macro
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | AstrHori 6.5mm F2.0 6mm | |
|---|---|---|
| Optics | ||
| Type | zoom | fisheye |
| Focal Length Min | 18 mm | 6 mm |
| Focal Length Max | 50 mm | 6 mm |
| Elements | 13 | 6 |
| Groups | 10 | 5 |
| Aspherical Elements | 3★ | — |
| ED Elements | 1★ | — |
| Coating | Super Multi-Layer Coating | — |
| Aperture | ||
| Max Aperture | f/2.8 | f/2 |
| Min Aperture | f/2.8 | f/2 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Nikon Z |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | — |
| Weight | 0.29 kg | 0.27 kg★ |
| Filter Thread | 55 mm | — |
| AF & Stabilization | ||
| AF Type | stepping motor★ | manual focus only |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 200 mm |
| Max Magnification | 1:2.8★ | — |
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 (87th percentile)87th %ile
- Strong af (86th percentile)86th %ile
AstrHori 6.5mm F2.0 6mm
- Strong bokeh (94th percentile)94th %ile
- Strong aperture (92nd percentile)92nd %ile
- Strong macro (83rd percentile)83rd %ile
- Strong build (71st percentile)
- Below average optical (1st percentile)1st %ile
- Below average af (14th percentile)14th %ile
- Below average user sentiment (16th percentile)16th %ile
- Below average versatility (34th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN
AstrHori 6.5mm F2.0 6mm
No current pricing available
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 9 of 9 usage categories and 7 of 21 specs.
