Elite Brands Inc RK20MAF-N
The bright f/1.8 maximum aperture combined with two aspherical and three ED elements delivers strong sharpness and contrast for full-frame Nikon F-mount DSLRs. Its manual focus design and Ultra Multi-Coating provide a tactile, flare-resistant shooting experience at a budget-friendly price point. This lens is best for landscape and astrophotography enthusiasts who prioritize a fast wide-angle prime and don't require autofocus.
Focal length 20mm
Aperture f/22
Mount Canon EF
Weight 499 g
af type manual focus only
lens type prime
44 综合评分
价格 £471
概览
用户评价
用户口碑如何随时间变化
独家依据客户实际撰写评价的时间--让你看到最初的好评是否持续。
85/100我们的 AI 口碑分析
基于 7 条带日期的客户评价，按日历季度分组。分期分析为英文。
实测数据
性能表现
规格参数
完整规格参数
Optics
| Type | Prime |
| Focal Length Min | 20 |
| Focal Length Max | 20 |
| Elements | 13 |
| Groups | 12 |
| Aspherical Elements | 2 |
| ED Elements | 3 |
| Coating | Ultra Multi-Coating |
Aperture
| Max Aperture | f/22 |
| Min Aperture | f/1.8 |
| Constant | No |
| Diaphragm Blades | 7 |
Build
| Mount | Canon EF |
| Format | full-frame |
| Weather Sealed | No |
| Weight | 0.5 kg / 1.1 lbs |
| Filter Thread | 77 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 200 |
竞品对比
| Spec | Elite Brands Inc RK20MAF-N | Nikon NIKKOR Z DX 18-140mm f/3.5-6.3 VR | Tamron Di III 28-75mm f/2.8 VXD G2 | Sigma Contemporary 10-18mm f/2.8 DC DN | Panasonic Leica DG Vario-Elmarit H-ES12060 | Canon RF 28-70mm f/2.8 IS STM |
|---|---|---|---|---|---|---|
| Focal Length | 20mm | 18-140mm | 28-75mm | 10-18mm | 12-60mm | 28-70mm |
| Max Aperture | f/22 | f/3.5 | f/2.8 | f/2.8 | f/2.8 | f/22 |
| Mount | Canon EF | Nikon Z | Sony E | Sony E | Micro Four Thirds | Canon RF |
| Stabilization | false | true | false | false | true | true |
| Weather Sealed | false | true | true | true | true | true |
| Weight (g) | 499 | 315 | 540 | 260 | 320 | 495 |
| AF Type | manual focus only | stepping motor | VXD | Autofocus | linear motor | STM |
| Lens Type | prime | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| 产品 | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | 用户口碑 | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Elite Brands Inc RK20MAF-N | 13.9 | 14.5 | 53.9 | 84.1 | 84.1 | 22.6 | 63.3 | 33.6 | 39.2 | 37.9 |
| Nikon NIKKOR Z DX 18-140mm f/3.5-6.3 VR Compare | 86.9 | 77.7 | 83.9 | 82.6 | 88.5 | 79.7 | 0 | 96.2 | 32 | 96.6 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.6 | 88 | 67.2 | 87.3 | 87.8 | 85.7 | 80.4 | 78.2 | 83.2 | 37.9 |
| Sigma Contemporary 10-18mm f/2.8 DC DN Compare | 54.6 | 83.5 | 87.3 | 93.3 | 81.6 | 85.7 | 80.4 | 69.1 | 69 | 37.9 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98 | 88 | 83.1 | 50.3 | 90.2 | 85.7 | 44.2 | 93.1 | 63.7 | 83.2 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 86.9 | 25.9 | 70.2 | 80.4 | 85 | 22.6 | 98.1 | 77.1 | 87.9 | 98.5 |
价格
性价比分析
最低 £471
