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Samyang AF 50mm f/1.4 AS UMC 50mm
The f/1.4 maximum aperture combined with an aspherical element delivers strong low-light performance and shallow depth of field control on full-frame Pentax K bodies. Its Ultra Multi-Coating effectively suppresses flare and ghosting, while the manual focus design provides a tactile, precise experience for deliberate composition. This lens is best for Pentax photographers who prioritize affordable, fast-aperture optics for portraiture and low-light work over autofocus convenience.
Focal length 50mm
Aperture f/22
Mount Canon EF
Weight 544 g
af type manual focus only
lens type prime
33 総合スコア
価格 $170
概要
オーナーの声
購入者の評価が時間とともにどう変化したか
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。
購入者の評価は一定を保っています
78/100当社のAIによる感情分析
日付のある顧客レビュー 21 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。
実証データ
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Optics
| Type | Prime |
| Focal Length Min | 50 |
| Focal Length Max | 50 |
| Elements | 9 |
| Groups | 6 |
| Aspherical Elements | 1 |
| ED Elements | 1 |
| Coating | Ultra Multi-Coating |
Aperture
| Max Aperture | f/22 |
| Min Aperture | f/1.4 |
| Constant | No |
| Diaphragm Blades | 8 |
Build
| Mount | Canon EF |
| Format | full-frame |
| Weather Sealed | No |
| Weight | 0.5 kg / 1.2 lbs |
| Filter Thread | 77 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 450 |
| Max Magnification | 1:6.25 |
競合製品との比較
| Spec | Samyang AF 50mm f/1.4 AS UMC 50mm | Tamron Di III 28-75mm f/2.8 VXD G2 | Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR | Panasonic LUMIX S S-R2060 | Sigma Art 28mm f/1.4 DG HSM Art | Viltrox WCL-X100VI |
|---|---|---|---|---|---|---|
| Focal Length | 50mm | 28-75mm | 16-50mm | 20-60mm | 28mm | 9mm |
| Max Aperture | f/22 | f/2.8 | f/3.5 | f/3.5 | f/1.4 | f/2.8 |
| Mount | Canon EF | Sony E | Nikon Z | L-Mount | Nikon F | Fujifilm X |
| Stabilization | false | false | true | false | false | true |
| Weather Sealed | false | true | false | true | true | false |
| Weight (g) | 544 | 540 | 135 | 350 | 865 | 130 |
| AF Type | manual focus only | VXD | Stepping Motor | stepping motor | HSM | Autofocus |
| Lens Type | prime | zoom | zoom | zoom | prime | wide-angle |
| Compare | Compare | Compare | Compare | Compare |
| 製品 | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | ユーザー評価 | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Samyang AF 50mm f/1.4 AS UMC 50mm | 13.9 | 20.2 | 48.6 | 59.3 | 54.9 | 22.6 | 29.8 | 33.6 | 45.7 | 37.9 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.6 | 88.1 | 67.2 | 87.3 | 87.8 | 85.8 | 80.4 | 78.2 | 83.1 | 37.9 |
| Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR Compare | 86.9 | 77.8 | 91.8 | 42.4 | 71.5 | 79.8 | 0 | 82.9 | 73.7 | 94.9 |
| Panasonic LUMIX S S-R2060 Compare | 86.9 | 86.1 | 80.6 | 66.2 | 76.4 | 79.8 | 0 | 81.4 | 64.9 | 37.9 |
| Sigma Art 28mm f/1.4 DG HSM Art Compare | 54.6 | 96.8 | 45.7 | 74.4 | 96.6 | 96.9 | 80.4 | 33.6 | 59.2 | 37.9 |
| Viltrox WCL-X100VI Compare | 54.6 | 83.5 | 92.7 | 99.2 | 3.6 | 85.8 | 63.3 | 33.6 | 87.9 | 83.2 |
