Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
98 综合评分
vs
Yongnuo 85mm F1.8S DF DSM 85mm
Yongnuo
66 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
Yongnuo 85mm F1.8S DF DSM 85mm
72 满分 100 置信度高 33 条评价
永诺85mm f/1.8 Z卡口镜头因其锐度、快速自动对焦以及与价格高得多的尼康同类产品相比出色的性价比而广受赞誉。许多用户强调其紧凑、轻巧的金属结构和美丽的散景，使其成为人像摄影的绝佳选择。然而，一些评论者报告了明显的眩光、色差和暗角，尤其是在全画幅相机上，并且与尼康Zf的兼容性问题后来通过固件更新得到了解决。一些用户还指出遮光罩无法牢固锁定，并且对焦环可能意外移动得太容易。
优点
- 价格下出色的锐度
- 快速安静的自动对焦
- 紧凑轻巧的金属结构
- 令人愉悦的散景
- 极佳的性价比
缺点
- 明显的眩光和色差
- 全画幅相机上强烈的暗角
- 遮光罩无法牢固锁定
- 对焦环可能意外移动得太容易
- 与尼康Zf的兼容性问题（已通过固件更新解决）
Sharpness 12
Autofocus performance 10
Value for money 9
Build quality 8
Flare and chromatic aberration 4
Vignetting 3
评分
Travel
Budget
Street
Professional
Portrait
Macro
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Yongnuo 85mm F1.8S DF DSM 85mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 85 mm |
| Focal Length Max | 50 mm | 85 mm |
| Elements | 13 | 9 |
| Groups | 10 | 8 |
| Aspherical Elements | 3★ | — |
| ED Elements | 1 | 1 |
| Coating | Super Multi-Layer Coating | nano-multilayer coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/1.8 |
| Min Aperture | f/2.8 | f/1.8 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 0.35 kg |
| Filter Thread | 55 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | DSM stepping motor |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 800 mm |
| Max Magnification | 1:2.8 | 1:7.7 |
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 (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
Yongnuo 85mm F1.8S DF DSM 85mm
- Strong aperture (94th percentile)94th %ile
- Strong bokeh (92nd percentile)92nd %ile
- Strong af (85th percentile)85th %ile
- Strong build (81st percentile)81st %ile
- Below average social proof (10th percentile)10th %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
Yongnuo 85mm F1.8S DF DSM 85mm
No current pricing available
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 98 overall, wins 7 of 9 usage categories and 4 of 21 specs.
