Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
Canon RF28-70mm F2.8 IS STM 28-70mm
Canon
86 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
Canon RF28-70mm F2.8 IS STM 28-70mm
95 满分 100 置信度中 12 条评价
这款镜头因其锐度、轻巧设计和多功能性而备受赞誉，是旅行和弱光摄影的绝佳中焦变焦镜头。用户欣赏它与佳能R系列相机的兼容性以及提供专业品质图像的能力。提到的唯一小缺点是变焦范围有限，但评论者一致认为这是目前最紧凑、最轻便的选择。
优点
- 锐利的图像质量
- 轻巧紧凑的设计
- 多功能中焦变焦
- 出色的弱光性能
- 快速准确的自动对焦
缺点
- 变焦范围有限
- 对某些用户来说价格较高
Image quality 5
Build quality 4
Value for money 3
Low light performance 3
Autofocus 2
Zoom range 2
评分
Travel
Budget
Street
Professional
Macro
Portrait
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Canon RF28-70mm F2.8 IS STM 28-70mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 18 mm | 28 mm |
| Focal Length Max | 50 mm | 70 mm |
| Elements | 13 | 15 |
| Groups | 10 | 12 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 1 | 2★ |
| Coating | Super Multi-Layer Coating | Super Spectra Coating (SSC) |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Canon RF |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 0.49 kg |
| Filter Thread | 55 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | STM★ |
| Stabilization | ✗ | ✓★ |
| Stabilization Stops | — | 5.5 stops★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 239 mm |
| Max Magnification | 1:2.8 | 1:4.2 |
优缺点
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (92nd percentile)92nd %ile
- Strong social proof (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (86th percentile)86th %ile
Canon RF28-70mm F2.8 IS STM 28-70mm
- Strong stabilization (99th percentile)99th %ile
- Strong user sentiment (98th percentile)98th %ile
- Strong social proof (90th percentile)90th %ile
- Strong optical (86th percentile)86th %ile
- Below average aperture (22nd percentile)
- Below average bokeh (25th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.173每美元得分
vs
Canon RF28-70mm F2.8 IS STM 28-70mm0.082每美元得分
Sigma Contemporary 18-50mm f/2.8 DC DN 性价比高 2.1 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 7 of 9 usage categories and 3 of 22 specs.
