Yongnuo 50mm f/1.8S DF 50mm
A bright f/1.8 full-frame lens for Sony E-mount, this 272g prime uses an ultra-quiet DSM stepping motor for smooth, silent autofocus. A customizable function button and USB-C firmware port add practical versatility, while the 9-blade diaphragm produces smoothly blurred backgrounds. It is best for portrait photographers seeking silent operation and shallow depth of field, and serves as a capable street photography lens.
Focal length 50mm
Aperture f/1.8
Mount Sony E
Weight 272 g
af type Autofocus
56 Overall Score
Price CA$495
Snapshot
The proof
Performance
Specifications
Full Specifications
Optics
| Focal Length Min | 50 |
| Focal Length Max | 50 |
| Elements | 10 |
| Groups | 6 |
Aperture
| Max Aperture | f/1.8 |
| Min Aperture | f/16 |
| Diaphragm Blades | 9 |
Build
| Mount | Sony E |
| Format | Full-Frame |
| Weight | 0.3 kg / 0.6 lbs |
| Filter Thread | 58 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | No |
Focus
| Min Focus Distance | 450 |
| Max Magnification | 1:7.69 |
vs Competition
| Spec | Yongnuo 50mm f/1.8S DF 50mm | Tamron Di III VC 28-300mm f/4-7.1 VXD | Sigma Contemporary 18-50mm f/2.8 DC DN | Nikon NIKKOR Z 17-28mm f/2.8 | Panasonic Leica DG Vario-Elmarit H-ES12035 | Sony E 18-135mm f/3.5-5.6 OSS |
|---|---|---|---|---|---|---|
| Focal Length | 50mm | 28-300mm | 18-50mm | 17-28mm | 12-35mm | 18-135mm |
| Max Aperture | f/1.8 | f/4 | f/2.8 | f/2.8 | f/2.8 | f/3.5 |
| Mount | Sony E | Sony E | Sony E | Nikon Z | Micro Four Thirds | Sony E |
| Stabilization | false | true | false | false | true | true |
| Weather Sealed | false | true | true | true | true | false |
| Weight (g) | 272 | 590 | 290 | 450 | 306 | 326 |
| AF Type | Autofocus | VXD linear motor | stepping motor | Stepping Motor | Autofocus | Linear motor |
| Lens Type | - | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Stabilization |
|---|---|---|---|---|---|---|---|---|
| Yongnuo 50mm f/1.8S DF 50mm | 53.9 | 93.9 | 78 | 60.8 | 40.2 | 93 | 33.6 | 36.8 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 98 | 78.2 | 65.1 | 85.8 | 96.7 | 66.3 | 97.7 | 82.4 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 86.9 | 82.1 | 86.1 | 91.7 | 82.2 | 84.2 | 78.6 | 36.8 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 86.9 | 87.3 | 75.2 | 85.8 | 88.2 | 84.2 | 68 | 36.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.9 | 82.1 | 85.4 | 51 | 86.5 | 84.2 | 80.6 | 96.9 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98 | 75.7 | 72.5 | 40.3 | 78.5 | 77.6 | 95.8 | 82.4 |
Price
Value & Pricing
From CA$495
B&H Photo 1 offer From CA$495
We started tracking prices for this product on May 29, 2026. The chart appears once we have more data.
