Tamron Di III F050 20mm
Focal length 20mm
Aperture f/2.8
Mount Sony E
Weather Sealed Yes
Weight 227 g
af type OSD
lens type prime
74 Overall Score
Price MX$5,999
Snapshot
Pros & Cons
Pros
- Strong macro (92nd percentile) 92nd
- Strong build (91st percentile) 91st
- Strong aperture (83rd percentile) 83rd
- Strong bokeh (81st percentile) 81st
Cons
- Below average versatility (34th 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.
Owner sentiment has held steady over time
Based on 24 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 | 10 |
| Groups | 9 |
| Coating | Fluorine coating, Broad-Band Anti-Reflection coating |
Aperture
| Max Aperture | f/2.8 |
| Min Aperture | f/2.8 |
| Constant | Yes |
| Diaphragm Blades | 7 |
Build
| Mount | Sony E |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 0.2 kg / 0.5 lbs |
| Filter Thread | 67 |
AF & Stabilization
| AF Type | OSD |
| Stabilization | No |
Focus
| Min Focus Distance | 119 |
| Max Magnification | 1:2 |
vs Competition
| Spec | Tamron Di III F050 20mm | Sigma Contemporary 18-50mm f/2.8 DC DN | Sony E PZ 16-50mm f/3.5-5.6 OSS | Canon RF 28-70mm f/2.8 IS STM | OM System M.Zuiko Digital ED 12-100mm f/4 IS PRO | Nikon NIKKOR AF-S DX NIKKOR 18-140mm f/3.5-5.6G ED VR |
|---|---|---|---|---|---|---|
| Focal Length | 20mm | 18-50mm | 16-50mm | 28-70mm | 12-100mm | 18-140mm |
| Max Aperture | f/2.8 | f/2.8 | f/3.5 | f/22 | f/4 | f/3.5 |
| Mount | Sony E | Sony E | Sony E | Canon RF | Micro Four Thirds | Nikon F |
| Stabilization | false | false | true | true | true | true |
| Weather Sealed | true | true | true | true | true | false |
| Weight (g) | 227 | 290 | 107 | 495 | 561 | 490 |
| AF Type | OSD | stepping motor | Autofocus | STM | Autofocus | Silent Wave Motor |
| Lens Type | prime | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Tamron Di III F050 20mm | 53.7 | 80.9 | 90.6 | 91.5 | 56.6 | 83.2 | 33.6 | 64.2 | 36.8 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 87.6 | 80.9 | 86.5 | 90.9 | 82.5 | 83.2 | 78.5 | 89.6 | 36.8 |
| Sony E PZ 16-50mm f/3.5-5.6 OSS Compare | 53.7 | 74.3 | 98.6 | 43.4 | 69 | 76.4 | 83.1 | 81 | 93.5 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 87.6 | 23.2 | 72.8 | 79.2 | 86.7 | 20.3 | 77.3 | 89.6 | 98.6 |
| OM System M.Zuiko Digital ED 12-100mm f/4 IS PRO Compare | 53.7 | 63.5 | 68.5 | 56.8 | 96.9 | 65.2 | 96.6 | 63 | 96.9 |
| Nikon NIKKOR AF-S DX NIKKOR 18-140mm f/3.5-5.6G ED VR Compare | 53.7 | 74.3 | 57.7 | 37.3 | 84.5 | 76.4 | 96.1 | 89.6 | 93.5 |
Price
Value & Pricing
From MX$5,999
Amazon.com.mx 1 offer From MX$5,999
We started tracking prices for this product on Jul 22, 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.
