Sony FE SEL20F18G 20mm
Combining a bright f/1.8 aperture with a 20mm ultra-wide perspective in a compact 373g body, this lens delivers sharp, aberration-free images thanks to two aspherical and three ED elements. Its dust- and moisture-sealed construction and fast, precise dual XD linear motor autofocus make it a reliable tool for run-and-gun shooting in challenging conditions. This lens is best for vloggers and landscape photographers who need a portable, high-resolution wide-angle prime with strong close-up capability.
Snapshot
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
Based on 101 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 20 |
| Focal Length Max | 20 |
| Elements | 14 |
| Groups | 12 |
| Aspherical Elements | 2 |
| ED Elements | 3 |
| Coating | Nano AR Coating and Fluorine Coating |
Aperture
| Max Aperture | f/22 |
| Min Aperture | f/1.8 |
| Constant | Yes |
| Diaphragm Blades | 9 |
Build
| Mount | Sony E |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 0.4 kg / 0.8 lbs |
| Filter Thread | 67 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | No |
Focus
| Min Focus Distance | 180 |
| Max Magnification | 1:5 |
vs Competition
| Spec | Sony FE SEL20F18G 20mm | Sigma Contemporary 28-70mm f/2.8 DG DN | OM System M.Zuiko Digital ED 12-100mm f/4 IS PRO | Nikon NIKKOR AF-S NIKKOR 16-35mm f/4G ED VR | Canon RF RF16-28mm F2.8 IS STM | Laowa 58mm f/2.8 2X Ultra-Macro APO |
|---|---|---|---|---|---|---|
| Focal Length | 20mm | 28-70mm | 12-100mm | 16-35mm | 16-28mm | 58mm |
| Max Aperture | f/22 | f/2.8 | f/4 | f/4 | f/22 | f/2.8 |
| Mount | Sony E | Sony E | Micro Four Thirds | Nikon F | Canon RF | Sony E |
| Stabilization | false | false | true | true | true | false |
| Weather Sealed | true | true | true | false | true | false |
| Weight (g) | 373 | 470 | 561 | 680 | 454 | 590 |
| AF Type | Autofocus | Stepping motor | Autofocus | Silent Wave Motor | STM | - |
| Lens Type | prime | zoom | zoom | zoom | zoom | - |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Sony FE SEL20F18G 20mm | 53.6 | 23.3 | 81.2 | 86.1 | 87.6 | 20.4 | 33.6 | 95.8 | 37 |
| Sigma Contemporary 28-70mm f/2.8 DG DN Compare | 87.7 | 86.4 | 74.6 | 95 | 95.5 | 83.5 | 77.4 | 85.1 | 37 |
| OM System M.Zuiko Digital ED 12-100mm f/4 IS PRO Compare | 53.6 | 63.9 | 68.6 | 57 | 96.9 | 65.4 | 96.6 | 62.4 | 96.9 |
| Nikon NIKKOR AF-S NIKKOR 16-35mm f/4G ED VR Compare | 53.6 | 77.2 | 44.1 | 73.2 | 92.9 | 65.4 | 75 | 72 | 74.1 |
| Canon RF RF16-28mm F2.8 IS STM Compare | 87.7 | 23.3 | 75.6 | 77.3 | 93.8 | 20.4 | 68.7 | 64.1 | 98.6 |
| Laowa 58mm f/2.8 2X Ultra-Macro APO Compare | 53.6 | 92.8 | 48.9 | 92.9 | 62.6 | 83.5 | 33.6 | 47 | 37 |
Price
Value & Pricing
Amazon.co.jp 1 offer From ¥196,971
We started tracking prices for this product on Aug 8, 2026. The chart appears once we have more data.
