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.
لمحة سريعة
آراء المالكين
كيف تغيّر رأي المالكين بمرور الوقت
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استنادًا إلى 21 مراجعة عملاء مؤرخة، مجمّعة حسب الربع التقويمي. تحليل الفترات باللغة الإنجليزية.
الأدلة
الأداء
المواصفات التقنية
المواصفات الكاملة
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 |
مقارنة بالمنافسين
| Spec | Samyang AF 50mm f/1.4 AS UMC 50mm | 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 | Fujifilm XF 18mm f/1.4 R LM WR |
|---|---|---|---|---|---|---|
| Focal Length | 50mm | 18-140mm | 28-75mm | 10-18mm | 12-60mm | 18mm |
| Max Aperture | f/22 | f/3.5 | f/2.8 | f/2.8 | f/2.8 | f/16 |
| Mount | Canon EF | Nikon Z | Sony E | Sony E | Micro Four Thirds | Fujifilm X |
| Stabilization | false | true | false | false | true | false |
| Weather Sealed | false | true | true | true | true | true |
| Weight (g) | 544 | 315 | 540 | 260 | 320 | 370 |
| AF Type | manual focus only | stepping motor | VXD | Autofocus | linear motor | Linear motor |
| Lens Type | prime | zoom | zoom | zoom | zoom | prime |
| Compare | Compare | Compare | Compare | Compare |
| المنتج | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | التقييم الاجتماعي | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Samyang AF 50mm f/1.4 AS UMC 50mm | 13.9 | 20.2 | 48.6 | 59.2 | 54.8 | 22.6 | 29.8 | 33.6 | 46.1 | 37.9 |
| Nikon NIKKOR Z DX 18-140mm f/3.5-6.3 VR Compare | 86.9 | 77.7 | 83.8 | 82.6 | 88.5 | 79.7 | 0 | 96.2 | 32.2 | 96.6 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.6 | 88 | 67.2 | 87.3 | 87.8 | 85.6 | 80.4 | 78.2 | 83.3 | 37.9 |
| Sigma Contemporary 10-18mm f/2.8 DC DN Compare | 54.6 | 83.4 | 87.1 | 93.3 | 81.5 | 85.6 | 80.4 | 69 | 69.2 | 37.9 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98 | 88 | 83 | 50.2 | 90.2 | 85.6 | 44.2 | 93.1 | 63.9 | 83.2 |
| Fujifilm XF 18mm f/1.4 R LM WR Compare | 98 | 41.2 | 79.3 | 84.1 | 83.4 | 45.8 | 90.8 | 33.6 | 88 | 37.9 |