Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
98 综合评分
vs
Viltrox AF 15mm F1.7 E 15mm
Viltrox
64 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 AF 15mm F1.7 E 15mm
78 满分 100 置信度高 76 条评价
这款Viltrox镜头系列因其卓越的性价比、锐度和大光圈而获得了压倒性的积极反馈。用户普遍称赞其画质和做工，认为其性能远超其价格。少数用户报告存在色差、视频中对焦噪音、固件更新及偶尔的缺陷问题，但总体认为这是非常优秀的平价定焦镜头。
优点
- 出色的锐度
- 大光圈（f/1.2、f/1.7、f/1.8）
- 性价比极高
- 做工扎实
- 快速准确的自动对焦
缺点
- 高对比度场景下有色差
- 视频自动对焦噪音大
- 光圈环太容易误触
- 固件更新过程繁琐
- 偶尔遇到有缺陷的镜头
Sharpness 28
Value for money 25
Build quality 18
Autofocus performance 16
Low light performance 12
Chromatic aberration 4
评分
Travel
Budget
Street
Professional
Macro
Portrait
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Viltrox AF 15mm F1.7 E 15mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 15 mm |
| Focal Length Max | 50 mm | 15 mm |
| Elements | 13 | 12 |
| Groups | 10 | 10 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 1 | 3★ |
| Coating | Super Multi-Layer Coating | splash-resistance and anti-fouling 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 | 0.18 kg★ |
| Filter Thread | 55 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | STM★ |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 230 mm |
| Max Magnification | 1:2.8★ | 0.1x |
优缺点
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (90th percentile)90th %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
Viltrox AF 15mm F1.7 E 15mm
- Strong build (94th percentile)94th %ile
- Strong af (85th percentile)85th %ile
- Strong optical (81st percentile)81st %ile
- Strong stabilization (80th percentile)80th %ile
- Below average user sentiment (30th percentile)
- Below average versatility (34th percentile)
- Below average macro (35th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.008每美元得分
vs
Viltrox AF 15mm F1.7 E 15mm0.018每美元得分
Viltrox AF 15mm F1.7 E 15mm 性价比高 2.3 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 98 overall, wins 9 of 9 usage categories and 3 of 21 specs.
