Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
98 综合评分
vs
Brightin Star 12mm f/2 III 12mm
Brightin Star
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
Brightin Star 12mm f/2 III 12mm
92 满分 100 置信度中 18 条评价
索尼 FE 70-200mm f/2.8 GM OSS II 镜头因其出色的锐度、快速自动对焦和低光性能而获得压倒性的积极反馈。用户强调它适用于摄影和视频，许多人注意到与之前的镜头相比有显著改进。一些问答环节解决了镜头关闭时内部移动的担忧，这被确认为稳定器的正常行为。总体而言，它被称赞为一流的专业变焦镜头。
优点
- 出色的锐度
- 快速灵敏的自动对焦
- 出色的低光性能
- 稳定的防抖，非常适合视频
- 内部变焦机制
缺点
- 关闭时内部移动可能引起担忧
- 电子对焦系统（非机械式）
- 价格高昂
- 三脚架必须安装在镜头环上，而非相机上
Image quality 6
Autofocus performance 4
Low light performance 2
Video suitability 2
Build quality 5
Value for money 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 | Brightin Star 12mm f/2 III 12mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 12 mm |
| Focal Length Max | 50 mm | 12 mm |
| Elements | 13 | 12 |
| Groups | 10 | 9 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 1 | 2★ |
| Coating | Super Multi-Layer Coating | — |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | f/2 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 10★ |
| Build | ||
| Mount | Sony E | Nikon Z |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.29 kg | 0.27 kg★ |
| Filter Thread | 55 mm | 62 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | Manual Focus |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 180 mm |
| Max Magnification | 1:2.8★ | — |
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
Brightin Star 12mm f/2 III 12mm
- Strong user sentiment (91st percentile)91st %ile
- Strong macro (85th percentile)85th %ile
- Strong social proof (82nd percentile)82nd %ile
- Strong build (77th percentile)
- Below average af (15th percentile)15th %ile
- Below average aperture (22nd percentile)
- Below average bokeh (33rd percentile)
- Below average versatility (34th percentile)
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 98 overall, wins 9 of 9 usage categories and 6 of 21 specs.