Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
TTArtisan AF 27mm F2.8 27mm
TTArtisan
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
TTArtisan AF 27mm F2.8 27mm
70 满分 100 置信度中 22 条评价
TTArtisan 27mm f/2.8 镜头因其紧凑的尺寸、轻巧的构造和良好的性价比而广受好评，成为日常携带和街头摄影的热门选择。然而，多位用户报告了暗角、边缘柔和以及偶尔自动对焦或曝光不一致的问题，尤其是在弱光环境下。虽然许多人认为它是富士27mm饼干镜头的可靠平价替代品，但有些人因其明显的暗角或缺乏对比度而退货。
优点
- 紧凑轻巧的设计
- 性价比高
- 中心图像锐利
- 快速静音自动对焦
- 易于使用的光圈和对焦环
缺点
- 明显的暗角
- 边缘和角落柔和
- 弱光下自动对焦不可靠
- 光圈变化时曝光不一致
- 缺乏对比度和饱和度
Compactness and portability 6
Value for money 5
Image sharpness 5
Vignetting 4
Autofocus performance 3
Build quality 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 | TTArtisan AF 27mm F2.8 27mm | |
|---|---|---|
| Optics | ||
| Type | zoom | wide-angle |
| Focal Length Min | 18 mm | 27 mm |
| Focal Length Max | 50 mm | 27 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/16 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Fujifilm X |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.29 kg | 0.09 kg★ |
| Filter Thread | 55 mm | 39 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | STM★ |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 350 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 (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
TTArtisan AF 27mm F2.8 27mm
- Strong macro (98th percentile)98th %ile
- Strong build (97th percentile)97th %ile
- Strong af (85th percentile)85th %ile
- Strong stabilization (80th percentile)80th %ile
- Below average optical (1st percentile)1st %ile
- Below average aperture (8th percentile)8th %ile
- Below average bokeh (9th percentile)9th %ile
- Below average user sentiment (11th percentile)11th %ile
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.179每美元得分
vs
TTArtisan AF 27mm F2.8 27mm0.276每美元得分
TTArtisan AF 27mm F2.8 27mm 性价比高 1.5 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 9 of 9 usage categories and 5 of 21 specs.
