Tamron Di III A062 20-40mm
Combining a constant f/2.8 aperture with a compact 365g build, this lens stands out for its fast VXD linear autofocus and useful 20-40mm range on full-frame Sony E-mount bodies. Its 6.7-inch minimum focus distance and moisture-sealed construction add practical close-up capability and durability in a portable package. This lens is best for travel photographers and vloggers who prioritize a lightweight, fast standard zoom over telephoto reach.
Focal length 20-40mm
Aperture f/22
Mount Sony E
Weather Sealed Yes
Weight 365 g
af type VXD Linear Motor
lens type zoom
72 Overall Score
Price $640
Snapshot
Pros & Cons
Pros
- Strong af (98th percentile) 98th
- Strong macro (88th percentile) 88th
- Strong optical (80th percentile) 80th
- Strong build (80th percentile) 80th
Cons
- Below average bokeh (15th percentile)
- Below average aperture (23rd 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
85/100Our AI sentiment read
Based on 13 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Zoom |
| Focal Length Min | 20 |
| Focal Length Max | 40 |
| Elements | 12 |
| Groups | 11 |
| Aspherical Elements | 1 |
| ED Elements | 4 |
| Coating | fluorine coating |
Aperture
| Max Aperture | f/22 |
| Min Aperture | f/2.8 |
| Constant | Yes |
Build
| Mount | Sony E |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 0.4 kg / 0.8 lbs |
| Filter Thread | 67 |
AF & Stabilization
| AF Type | VXD Linear Motor |
| Stabilization | No |
Focus
| Min Focus Distance | 170 |
| Max Magnification | 1:3.8 |
vs Competition
| Spec | Tamron Di III A062 20-40mm | Nikon NIKKOR Z 17-28mm f/2.8 | Sigma Contemporary 10-18mm f/2.8 DC DN | Panasonic Leica DG Vario-Elmarit H-ES12060 | Canon RF 28-70mm f/2.8 IS STM | Sony FE SEL2070G |
|---|---|---|---|---|---|---|
| Focal Length | 20-40mm | 17-28mm | 10-18mm | 12-60mm | 28-70mm | 20-70mm |
| Max Aperture | f/22 | f/2.8 | f/2.8 | f/2.8 | f/22 | f/4 |
| Mount | Sony E | Nikon Z | Sony E | Micro Four Thirds | Canon RF | Sony E |
| Stabilization | false | false | false | true | true | false |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 365 | 450 | 260 | 320 | 495 | 488 |
| AF Type | VXD Linear Motor | Stepping Motor | Autofocus | linear motor | STM | Autofocus |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Tamron Di III A062 20-40mm | 98 | 14.5 | 79.8 | 88.3 | 80.3 | 22.6 | 63.3 | 72.1 | 70.5 | 38 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87 | 88.1 | 73.7 | 86.3 | 87 | 85.8 | 90.8 | 68.1 | 64.5 | 38 |
| Sigma Contemporary 10-18mm f/2.8 DC DN Compare | 54.6 | 83.5 | 87.4 | 93.3 | 81.6 | 85.8 | 80.3 | 69.1 | 68.7 | 38 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98 | 88.1 | 83.2 | 50.4 | 90.2 | 85.8 | 44.2 | 93.1 | 63.4 | 83.2 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 87 | 26 | 70.2 | 80.4 | 85 | 22.6 | 98.1 | 77.2 | 87.8 | 98.5 |
| Sony FE SEL2070G Compare | 54.6 | 80.2 | 70.9 | 51.1 | 93.1 | 70 | 63.3 | 84.3 | 91.7 | 38 |
Price
Value & Pricing
From $640
Newegg 1 offer From $640
Adorama 1 offer From $699
Amazon 1 offer From $699
B&H Photo 1 offer From $699
Best Buy 1 offer From $719
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
