Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
92 综合评分
vs
TTArtisan AF 40mm f/2 40mm
TTArtisan
41 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 40mm f/2 40mm
60 满分 100 置信度低 7 条评价
TTArtisan 40mm f/2.0 饼干镜头收到了用户褒贬不一的反馈。用户称赞其紧凑的金属结构、令人满意的光圈环和出色的性价比，但自动对焦的严重问题——对焦犹豫、脉动和噪音——被频繁提及。图像质量总体不错，但用户注意到在强光下拍摄时有严重的暗角和眩光。总体而言，这是一款预算友好的选择，但在自动对焦可靠性上有所妥协。
优点
- 紧凑的金属结构
- 令人满意的光圈环
- 出色的性价比
- 良好的图像质量
- 快速f/2.0光圈适合低光
缺点
- 自动对焦性能差
- 自动对焦马达噪音大
- 严重暗角
- 逆光拍摄有眩光
- 偶尔与相机连接不良
Autofocus performance 5
Build quality 4
Value for money 4
Image quality 4
Vignetting 2
Flare 2
评分
Street
Travel
Professional
Budget
Macro
Portrait
Video Cinema
Wildlife Sports
Landscape
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | TTArtisan AF 40mm f/2 40mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 40 mm |
| Focal Length Max | 50 mm | 40 mm |
| Elements | 13 | 9 |
| 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/2 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Fujifilm X | Nikon Z |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓★ | — |
| Weight | 0.29 kg | 0.18 kg★ |
| Filter Thread | 55 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | STM Stepping AF Motor★ |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 50 mm★ | 400 mm |
| Max Magnification | 1:2.8★ | — |
优缺点
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (96th percentile)96th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (86th percentile)86th %ile
- Strong build (85th percentile)85th %ile
TTArtisan AF 40mm f/2 40mm
- Strong build (87th percentile)87th %ile
- Strong af (86th percentile)86th %ile
- Below average user sentiment (5th percentile)5th %ile
- Below average bokeh (31st percentile)
- Below average versatility (34th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN
TTArtisan AF 40mm f/2 40mm
No current pricing available
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 92 overall, wins 9 of 9 usage categories and 5 of 21 specs.
