Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
7Artisans 35mm 0.95 35mm
7Artisans
50 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 35mm 0.95 35mm
82 满分 100 置信度中 12 条评价
这款7Artisans 50mm f/0.95镜头因其出色的做工质量、金属和玻璃结构以及约250美元的惊人性价比而备受赞誉。用户喜欢顺滑如丝的对焦环和12片光圈叶片产生的奶油般虚化效果，但许多人指出无级光圈环容易意外滑动，且在f/0.95下对焦需要格外小心。色差和眩光存在但可在后期处理中矫正，附带的镜头盖无法在UV滤镜上使用。总体而言，它被视为一款有趣且紧凑的镜头，能重新点燃对摄影的热情，尤其是在配备峰值对焦的富士X系列机身上。
优点
- 性价比极高
- 扎实的金属玻璃做工
- 顺滑如丝的手动对焦环
- 12片圆形光圈产生的奶油般虚化
- 紧凑轻巧的设计
缺点
- 无级光圈环容易意外滑动
- 镜头盖无法在UV滤镜上使用
- 高对比度边缘出现色差
- 直对太阳拍摄时产生眩光
- 未附带遮光罩
Build quality 9
Value for money 8
Image quality 8
Bokeh 5
Aperture ring 7
Focus experience 6
评分
Travel
Budget
Street
Professional
Portrait
Macro
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | 7Artisans 35mm 0.95 35mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 35 mm |
| Focal Length Max | 50 mm | 35 mm |
| Elements | 13 | 11 |
| Groups | 10 | 8 |
| Aspherical Elements | 3★ | — |
| ED Elements | 1 | 2★ |
| Coating | Super Multi-Layer Coating | nanocrystalline coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/16 |
| Min Aperture | f/2.8 | f/0.95 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 12★ |
| Build | ||
| Mount | Sony E | Canon RF |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 0.64 kg |
| Filter Thread | 55 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | manual focus only |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 370 mm |
| Max Magnification | 1:2.8★ | — |
优缺点
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (91st percentile)91st %ile
- Strong social proof (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
7Artisans 35mm 0.95 35mm
- Strong social proof (73rd percentile)
- Below average af (15th percentile)15th %ile
- Below average versatility (34th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.001每美元得分
vs
7Artisans 35mm 0.95 35mm0.002每美元得分
7Artisans 35mm 0.95 35mm 性价比高 2.0 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 9 of 9 usage categories and 6 of 21 specs.
