Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
Viltrox Air AF 25mm f/1.7 Air E 25mm
Viltrox
65 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
Viltrox Air AF 25mm f/1.7 Air E 25mm
85 满分 100 置信度中 13 条评价
适用于富士X卡口的唯卓仕23mm f/1.4镜头因其锐度、快速安静的自动对焦以及相对于其预算价格的出色做工而广受赞誉。用户指出它能很好地解析4000万像素传感器并产生漂亮的虚化效果，尽管有些人希望它有带档位的光圈环，并提到它比同类镜头更重。个别问题包括收到错误的遮光罩以及一个锐度不如唯卓仕35mm Air的样品。
优点
- 出色的锐度
- 快速安静的自动对焦
- 价格合理的出色做工
- 美丽的虚化效果
- 良好解析4000万像素传感器
缺点
- 没有带档位的光圈环
- 比同类镜头更重
- 边缘锐度下降
- 部分样品锐度不如唯卓仕35mm Air
- 个别情况收到错误的遮光罩
Sharpness 8
Autofocus performance 4
Build quality 5
Value for money 6
Aperture ring 3
Weight 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 | Viltrox Air AF 25mm f/1.7 Air E 25mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 25 mm |
| Focal Length Max | 50 mm | 25 mm |
| Elements | 13 | 12 |
| Groups | 10 | 10 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 1 | 1 |
| Coating | Super Multi-Layer Coating | HD Multilayer Nano Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/16 |
| Min Aperture | f/2.8 | f/1.7 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Sony E |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.29 kg | 0.17 kg★ |
| Filter Thread | 55 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | STM★ |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 300 mm |
| Max Magnification | 1:2.8★ | 0.11x |
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
Viltrox Air AF 25mm f/1.7 Air E 25mm
- Strong build (88th percentile)88th %ile
- Strong social proof (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
- Strong optical (74th percentile)
- Below average macro (33rd percentile)
- Below average versatility (34th percentile)
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.