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
62 Overall Score
Price R$0
Snapshot
Pros & Cons
Pros
- Strong bokeh (98th percentile) 98th
- Strong aperture (94th percentile) 94th
- Strong stabilization (83rd percentile) 83rd
- Strong optical (79th percentile) 79th
Cons
- Below average af (13th percentile)
- Below average build (26th percentile)
- Below average versatility (33rd percentile)
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 17-70mm f/2.8 Di III-A VC RXD | Nikon NIKKOR Z 17-28mm f/2.8 | Sigma Contemporary 16-28mm f/2.8 DG DN | Panasonic Leica DG Vario-Elmarit H-ES12060 | Canon RF 28-70mm f/2.8 IS STM |
|---|---|---|---|---|---|---|
| Focal Length | 20mm | 17-70mm | 17-28mm | 16-28mm | 12-60mm | 28-70mm |
| Max Aperture | f/1.8 | f/2.8 | f/2.8 | f/2.8 | f/2.8 | f/22 |
| Mount | Sony E | Fujifilm X | Nikon Z | Sony E | Micro Four Thirds | Canon RF |
| Stabilization | true | true | false | false | true | true |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 1200 | 544 | 450 | 450 | 320 | 495 |
| AF Type | manual focus only | RXD | Stepping Motor | Stepping AF Motor | linear motor | STM |
| 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 | 12.8 | 98 | 26.2 | 77.8 | 79.4 | 93.6 | 33.3 | 83.3 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.7 | 87.1 | 69.8 | 85.8 | 91 | 84.3 | 89.3 | 83.3 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.4 | 87.1 | 76.1 | 85.8 | 88 | 84.3 | 67.3 | 37.7 |
| Sigma Contemporary 16-28mm f/2.8 DG DN Compare | 87.4 | 87.1 | 76.1 | 77.8 | 97.2 | 84.3 | 67.9 | 37.7 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98.1 | 87.1 | 84.6 | 51.7 | 91 | 84.3 | 93.1 | 83.3 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 87.4 | 24 | 72.9 | 80 | 86.2 | 21 | 76.8 | 98.6 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
