Rokinon RK20MAF-N 20mm
The bright f/1.8 aperture and 20mm focal length, combined with two aspherical and three ED elements, produce sharp, aberration-controlled images on full-frame Nikon F cameras. Its 485g manual focus design focuses down to 7.9 inches, and the 7-blade rounded diaphragm with Ultra Multi-Coating creates smooth bokeh while resisting flare. This lens suits astrophotographers and portrait shooters who prioritize a fast wide-angle perspective and hands-on control without needing autofocus.
Focal length 20mm
Aperture 22
Mount Nikon F
Weight 488 g
af type manual focus only
lens type prime
45 総合スコア
価格 $497
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Cons
What owners think
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独自顧客が実際にレビューを書いた時期に基づいています。発売当初の高評価が続いたかどうかがわかります。
85/100当社のAIによる感情分析
日付のある顧客レビュー 7 件を暦四半期ごとに集計しています。期間別の分析は英語です。
The proof
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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 | 22 |
| Min Aperture | 1.8 |
| Constant | No |
| Diaphragm Blades | 7 |
Build
| Mount | Nikon F |
| Format | full-frame |
| Weight | 0.5 kg / 1.1 lbs |
| Filter Thread | 77 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 200 |
競合製品との比較
| Spec | Rokinon RK20MAF-N 20mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III-A 18-300mm f/3.5-6.3 Di III-A VC VXD | Nikon NIKKOR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR | Panasonic LUMIX S S-R28200 | Canon EF-S 18-135mm f/3.5-5.6 IS USM |
|---|---|---|---|---|---|---|
| Focal Length | 20mm | 16-300mm | 18-300mm | 16-85mm | 28-200mm | 18-135mm |
| Max Aperture | 22 | f/3.5 | f/3.5 | f/3.5 | f/4 | f/3.5 |
| Mount | Nikon F | Sony E | Fuji X | Nikon F | L-Mount | Canon EF-S |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | true | false | false | true | false |
| Weight (g) | 488 | 615 | 92 | 59 | 413 | 515 |
| AF Type | manual focus only | HLA | VXD linear motor | AF-S | Autofocus | STM |
| Lens Type | prime | zoom | zoom | zoom | macro | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Rokinon RK20MAF-N 20mm | 15.2 | 16.2 | 49.9 | 82.1 | 83.6 | 25.3 | 64 | 34 | 39.7 | 35.8 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 55.1 | 86.4 | 57.6 | 86.7 | 98.9 | 79.6 | 0 | 99.6 | 78 | 99 |
| Tamron Di III-A 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.2 | 77.8 | 96.2 | 88.6 | 73.5 | 79.6 | 30.1 | 99.2 | 83.1 | 80.7 |
| Nikon NIKKOR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR Compare | 55.1 | 77.8 | 98.5 | 59.9 | 64.2 | 79.6 | 81.2 | 94.2 | 88.1 | 92.3 |
| Panasonic LUMIX S S-R28200 Compare | 55.1 | 80.6 | 73.5 | 71.5 | 91 | 74.2 | 0 | 95.6 | 62.6 | 99.4 |
| Canon EF-S 18-135mm f/3.5-5.6 IS USM Compare | 86.1 | 77.8 | 45.8 | 32.9 | 79.2 | 79.6 | 0 | 96 | 78 | 92.3 |
