Sony SEL20F18G
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
Pros & Cons
Pros
- Strong social proof (96th percentile) 96th
- Strong optical (87th percentile) 87th
- Strong macro (87th percentile) 87th
- Strong build (81st percentile) 81st
Cons
- Below average aperture (21st percentile)
- Below average bokeh (24th percentile)
- Below average versatility (33rd percentile)
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 SEL20F18G | Nikon NIKKOR AF-S NIKKOR 16-35mm f/4G ED VR | Canon RF RF16-28mm F2.8 IS STM | Laowa 58mm f/2.8 | Viltrox EPIC Memento 75mm f/1.2 AF | 7Artisans AF135mm F1.8 |
|---|---|---|---|---|---|---|
| Focal Length | 20mm | 16-35mm | 16-28mm | 58mm | 75mm | 135mm |
| Max Aperture | f/22 | f/4 | f/22 | f/2.8 | f/16 | f/16 |
| Mount | Sony E | Nikon F | Canon RF | Sony E | Fujifilm X | Nikon Z |
| Stabilization | false | true | true | false | false | true |
| Weather Sealed | true | false | true | false | true | true |
| Weight (g) | 374 | 680 | 454 | 590 | 670 | - |
| AF Type | Autofocus | Silent Wave Motor | STM | - | STM | STM |
| Lens Type | prime | zoom | zoom | - | prime | telephoto |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Sony SEL20F18G | 53.8 | 24 | 81.3 | 86.8 | 87.1 | 20.9 | 33.3 | 95.5 | 37.7 |
| Nikon NIKKOR AF-S NIKKOR 16-35mm f/4G ED VR Compare | 53.8 | 78 | 44 | 73.4 | 92.8 | 66.7 | 74.4 | 72.7 | 75.4 |
| Canon RF RF16-28mm F2.8 IS STM Compare | 87.4 | 24 | 75.7 | 77.8 | 93.7 | 20.9 | 67.9 | 64.8 | 98.6 |
| Laowa 58mm f/2.8 Compare | 53.8 | 93.5 | 49 | 93.6 | 61.5 | 84.3 | 33.3 | 46.8 | 37.7 |
| Viltrox EPIC Memento 75mm f/1.2 AF Compare | 87.4 | 44 | 61.1 | 46.1 | 89.4 | 41.8 | 33.3 | 81.3 | 37.7 |
| 7Artisans AF135mm F1.8 Compare | 87.4 | 47.3 | 62.5 | 51.5 | 92 | 41.8 | 33.3 | 38.8 | 83.3 |
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.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
