Viltrox PFU RBMH FE 2.0 F1.8 20mm
The 14-blade diaphragm and f/1.8 aperture combine to render exceptionally smooth bokeh from a 20mm wide-angle, a rare capability for astrophotography and low-light scenes. Its advanced optical design with 4 ED elements and an aspherical lens maintains sharpness while minimizing distortion, all within a weather-sealed build. This lens is best for manual-focus enthusiasts shooting landscapes, architecture, and night skies who prioritize creative depth-of-field control over autofocus convenience.
Focal length 20mm
Aperture f/1.8
Mount Sony E
stabilization Yes
Weather Sealed Yes
Weight 1200 g
af type manual focus only
lens type prime
60 Overall Score
Price $399
Snapshot
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 20 |
| Focal Length Max | 20 |
| Elements | 12 |
| Groups | 9 |
| Aspherical Elements | 1 |
| ED Elements | 4 |
| Coating | HD NANO Coating |
Aperture
| Max Aperture | f/1.8 |
| Min Aperture | f/1.8 |
| Constant | Yes |
| Diaphragm Blades | 14 |
Build
| Mount | Sony E |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 1.2 kg / 2.6 lbs |
| Filter Thread | 82 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | Yes |
Focus
| Min Focus Distance | 250 |
vs Competition
| Spec | Viltrox PFU RBMH FE 2.0 F1.8 20mm | 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 | 20mm | 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 | true | true | false | false | true | true |
| Weather Sealed | true | true | true | true | true | false |
| Weight (g) | 1200 | 610 | 290 | 450 | 306 | 326 |
| AF Type | manual focus only | VXD linear motor | stepping motor | Stepping Motor | Autofocus | Linear motor |
| Lens Type | prime | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Stabilization |
|---|---|---|---|---|---|---|---|---|
| Viltrox PFU RBMH FE 2.0 F1.8 20mm | 12.9 | 98 | 23.9 | 77.3 | 80.1 | 92.8 | 33.7 | 82.5 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 98.1 | 77.3 | 65.3 | 85 | 96.8 | 65.6 | 97.8 | 82.5 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 87.2 | 81.4 | 86.7 | 90.8 | 82.5 | 83.6 | 78.5 | 36.8 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.2 | 86.6 | 75.9 | 85 | 88.4 | 83.6 | 68.1 | 36.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.6 | 81.4 | 86.1 | 50.7 | 86.7 | 83.6 | 80.5 | 96.9 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98.1 | 74.8 | 73.2 | 40.1 | 78.9 | 77 | 95.8 | 82.5 |
Price
Value & Pricing
From $399
