Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
7Artisans 75mm f/1.4 75mm
7Artisans
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
7Artisans 75mm f/1.4 75mm
92 满分 100 置信度中 27 条评价
索尼 FE 70-200mm f/2.8 GM OSS II 镜头因其出色的锐度、快速安静的自动对焦和优秀的弱光性能而获得压倒性的好评。用户强调其与增距镜的兼容性以及适用于视频和静态摄影的多功能性。一些问答指出，镜头关闭时内部移动是光学防抖的正常现象，但这引起了一些买家的初步担忧。
优点
- 出色的锐度
- 快速安静的自动对焦
- 优秀的弱光性能
- 与增距镜配合出色
- 平滑的虚化效果
缺点
- 关闭时内部移动引起担忧
- 非齐焦镜头
- 电子对焦系统
- 三脚架必须安装在镜头环上
Image quality 7
Autofocus performance 5
Low light performance 2
Build quality 5
Teleconverter compatibility 2
Video suitability 2
评分
Travel
Macro
Budget
Street
Professional
Portrait
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | 7Artisans 75mm f/1.4 75mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 75 mm |
| Focal Length Max | 50 mm | 75 mm |
| Elements | 13 | 6 |
| Groups | 10 | 6 |
| Aspherical Elements | 3★ | — |
| ED Elements | 1★ | — |
| Coating | Super Multi-Layer Coating | — |
| Aperture | ||
| Max Aperture | f/2.8 | f/16 |
| Min Aperture | f/2.8 | f/1.4 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 13★ |
| Build | ||
| Mount | Sony E | Nikon Z |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓★ | — |
| Weight | 0.29 kg★ | 0.41 kg |
| Filter Thread | 55 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | manual focus only |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 800 mm |
| Max Magnification | 1:2.8★ | — |
优缺点
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (91st percentile)91st %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (87th percentile)87th %ile
- Strong af (86th percentile)86th %ile
7Artisans 75mm f/1.4 75mm
- Strong social proof (97th percentile)97th %ile
- Strong user sentiment (91st percentile)91st %ile
- Below average optical (2nd percentile)2nd %ile
- Below average af (15th percentile)15th %ile
- Below average versatility (34th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.019每美元得分
vs
7Artisans 75mm f/1.4 75mm0.044每美元得分
7Artisans 75mm f/1.4 75mm 性价比高 2.3 倍
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.
