Samyang AF 50mm f/1.4 AS UMC 50mm
The f/1.4 maximum aperture combined with hybrid aspherical and ED elements delivers sharp, color-accurate images with strong low-light performance and shallow depth of field control. Its Ultra Multi-Coating effectively suppresses ghosting and flare, while the internal focusing design keeps the 77mm filter thread from rotating during use. This manual-focus lens is best for portrait and macro photographers on Pentax KAF systems who prioritize optical quality and smooth bokeh over autofocus convenience.
لمحة سريعة
آراء المالكين
كيف تغيّر رأي المالكين بمرور الوقت
حصرياستنادًا إلى وقت كتابة العملاء لتقييماتهم فعليًا - لترى ما إذا كان الثناء المبكر قد استمر.
- Q2 202283/100
Buyers praised the lens for sharpness, fast autofocus, and image quality rivaling pricier options, though vignetting was noted.
- Sharpness and image quality comparable to expensive lenses.
- Fast and accurate autofocus.
- Vignetting present but fixable in post-processing.
- Great value for the price.
- Q4 202195/100
Buyers praised the lens for excellent image quality and fun manual aperture ring, noting focus requires practice but delivers great results for the price.
- Excellent image quality, among the best of all lenses owned.
- Manual aperture ring adds fun and functionality, reminiscent of Fuji lenses.
- Focus takes practice but improves with use; 8/10 hit rate on cats.
- Great value for the price, cheaper end of cost spectrum.
استنادًا إلى 17 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 | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Nikon NIKKOR Z 24-200mm f/4-6.3 VR | Sony E 18-135mm f/3.5-5.6 OSS | Panasonic LUMIX S S-S85 |
|---|---|---|---|---|---|---|
| Focal Length | 50mm | 16-300mm | 17-70mm | 24-200mm | 18-135mm | 85mm |
| Max Aperture | f/22 | f/3.5 | f/2.8 | f/4 | f/3.5 | f/1.8 |
| Mount | Canon EF | Sony E | Sony E | Nikon Z | Sony E | L-Mount |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | true | true | true | false | true |
| Weight (g) | 544 | 615 | 544 | 570 | 326 | 454 |
| AF Type | manual focus only | HLA | RXD | stepping motor | Linear motor | Linear motor |
| Lens Type | prime | zoom | zoom | zoom | zoom | telephoto |
| 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 | 13.2 | 17.9 | 50.9 | 60.5 | 58.9 | 19.8 | 44.7 | 33.7 | 55.3 | 36.8 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 53.8 | 84.5 | 64.2 | 87.4 | 99.2 | 76.6 | 0 | 99.6 | 81.9 | 99.2 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.8 | 86.4 | 69.1 | 85.5 | 91.2 | 83.3 | 63.8 | 89.6 | 86.1 | 82.4 |
| Nikon NIKKOR Z 24-200mm f/4-6.3 VR Compare | 86.8 | 63.8 | 67 | 38.7 | 93 | 65.3 | 0 | 96.6 | 90.2 | 96.9 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98 | 74.6 | 73 | 40.3 | 78.7 | 76.6 | 44.7 | 95.8 | 90.2 | 82.4 |
| Panasonic LUMIX S S-S85 Compare | 98 | 93.6 | 75.3 | 52.3 | 51.9 | 92.5 | 76 | 33.7 | 93.5 | 82.4 |
