Viltrox AF 9mm F2.8 XF 9mm
Viltrox
93 综合评分
vs
Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm
Pentax
87 综合评分
买家怎么说
Viltrox AF 9mm F2.8 XF 9mm
82 满分 100 置信度高 51 条评价
Viltrox镜头因其卓越的性价比、锐利的图像质量和坚固的构造而获得压倒性的好评。用户称赞其大光圈和自动对焦性能，尽管有些人指出在高对比度场景中存在色差，以及某些型号的自动对焦噪音较大。总体而言，这些镜头被视为预算友好的替代品，性能远超其价格。
优点
- 卓越的性价比
- 全开光圈时图像锐利
- 坚固的金属结构
- 快速准确的自动对焦
- 令人愉悦的虚化效果
缺点
- 高对比度下的色差
- 视频中自动对焦噪音大
- 低光下自动对焦慢
- 无防风雨密封
- 在小机身上头重脚轻
Value for money 18
Image quality 20
Build quality 12
Autofocus performance 15
Bokeh 6
Low light performance 8
Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm
82 满分 100 置信度中 24 条评价
宾得HD DA 20-40mm f/2.8-4 ED Limited DC WR镜头因其出色的做工质量、锐度和美丽的色彩还原而备受赞誉。用户喜欢它作为街拍和风景摄影的多功能挂机镜头，尤其是在K-3等APS-C机身上。主要缺点是可变光圈和许多人认为相对于套机镜头的性能提升而言价格过高。
优点
- 出色的做工质量
- 优秀的锐度
- 美丽的色彩还原
- 防尘防滴
- 适合街拍和风景的多功能焦段
缺点
- 可变光圈 (f/2.8-4)
- 性能提升价格过高
- 变焦范围有限
- 不如某些套机镜头广角
Build quality 8
Sharpness 7
Color rendition 5
Value for money 4
Weather resistance 3
Variable aperture 3
评分
Street
Macro
Video Cinema
Portrait
Budget
Professional
Travel
Landscape
Wildlife Sports
规格
| Viltrox AF 9mm F2.8 XF 9mm | Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm | |
|---|---|---|
| Optics | ||
| Type | wide-angle | zoom |
| Focal Length Min | 9 mm | 20 mm |
| Focal Length Max | 9 mm | 40 mm |
| Elements | 13 | 9 |
| Groups | 11 | 8 |
| Aspherical Elements | 2★ | 1 |
| ED Elements | 3★ | 1 |
| Coating | HD multilayer nano coating | HD coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/2.8 |
| Min Aperture | f/2.8 | 2.8-4 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Fujifilm X | Pentax K |
| Format | APS-C | APS-C |
| Weather Sealed | ✗ | ✓★ |
| Weight | 0.17 kg★ | 0.28 kg |
| Filter Thread | 58 mm | 55 mm |
| AF & Stabilization | ||
| AF Type | STM★ | Autofocus |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 130 mm | 40 mm★ |
| Max Magnification | 1:6.66 | 1:5 |
优缺点
Viltrox AF 9mm F2.8 XF 9mm
- Strong macro (89th percentile)89th %ile
- Strong build (87th percentile)87th %ile
- Strong social proof (86th percentile)86th %ile
- Strong aperture (86th percentile)86th %ile
- Below average versatility (34th percentile)
Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm
- Strong macro (97th percentile)97th %ile
- Strong bokeh (89th percentile)89th %ile
- Strong aperture (86th percentile)86th %ile
- Strong build (86th percentile)86th %ile
结论
胜出: Viltrox AF 9mm F2.8 XF 9mm
Scores 93 overall, wins 8 of 9 usage categories and 5 of 21 specs.