Tokina atx-i TO1-ATXI1120N 20mm
The constant f/2.8 aperture across the 11-20mm zoom range, combined with a weather-sealed build and water-repellent coating, makes this lens a reliable tool for challenging light and conditions. Its optical formula, incorporating three aspherical and three ED elements, delivers sharp, high-contrast images while the One-Touch Focus Clutch mechanism allows for instant switching between autofocus and manual focus. This lens is best for APS-C landscape and astrophotography shooters who need a bright, ultra-wide zoom with rugged, all-weather durability.
Snapshot
Pros & Cons
Pros
- Strong optical (90th percentile) 90th
- Strong macro (75th percentile) 75th
- Strong build (69th percentile) 69th
- Strong versatility (69th percentile) 69th
Cons
- Below average aperture (21st percentile)
- Below average bokeh (24th 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 23 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Zoom |
| Focal Length Min | 11 |
| Focal Length Max | 20 |
| Elements | 14 |
| Groups | 12 |
| Aspherical Elements | 3 |
| ED Elements | 3 |
| Coating | Anti-Reflective Multi-Layer Lens Coating |
Aperture
| Max Aperture | f/22 |
| Min Aperture | f/2.8 |
| Constant | Yes |
| Diaphragm Blades | 9 |
Build
| Mount | Canon EF |
| Format | APS-C |
| Weather Sealed | Yes |
| Weight | 0.6 kg / 1.2 lbs |
| Filter Thread | 82 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | No |
Focus
| Min Focus Distance | 280 |
| Max Magnification | 1:8 |
vs Competition
| Spec | Tokina atx-i TO1-ATXI1120N 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 | Sony G SELP28135G.SYX |
|---|---|---|---|---|---|---|
| Focal Length | 11-20mm | 17-70mm | 17-28mm | 16-28mm | 12-60mm | 28-135mm |
| Max Aperture | f/22 | f/2.8 | f/2.8 | f/2.8 | f/2.8 | f/4 |
| Mount | Canon EF | Fujifilm X | Nikon Z | Sony E | Micro Four Thirds | Sony E |
| Stabilization | false | true | false | false | true | true |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 555 | 544 | 450 | 450 | 320 | 420 |
| AF Type | Autofocus | RXD | Stepping Motor | Stepping AF Motor | linear motor | SSM |
| Lens Type | zoom | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Tokina atx-i TO1-ATXI1120N 20mm | 53.7 | 24.1 | 68.8 | 74.6 | 90 | 21 | 63.3 | 68.7 | 66.1 | 37.8 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.7 | 87.4 | 69.6 | 85.9 | 91 | 84.6 | 63.3 | 89.3 | 85.1 | 83.4 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.4 | 87.4 | 75.9 | 85.9 | 88 | 84.6 | 90.8 | 67.3 | 68.8 | 37.8 |
| Sigma Contemporary 16-28mm f/2.8 DG DN Compare | 87.4 | 87.4 | 75.9 | 77.8 | 97.2 | 84.6 | 75.5 | 68 | 62.7 | 37.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98.1 | 87.4 | 84.6 | 51.9 | 91 | 84.6 | 44.2 | 93.1 | 67.8 | 83.4 |
| Sony G SELP28135G.SYX Compare | 94.4 | 78.4 | 77.7 | 34.1 | 88 | 67.1 | 63.3 | 92.4 | 55.7 | 93.4 |
Price
Value & Pricing
We started tracking prices for this product on May 26, 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.
