Viltrox AF 40mm F2.5 40mm
The f/2.5 aperture and STM motor deliver quiet autofocus and soft bokeh, supported by a 6-group,10-element optical formula for sharp imaging. A hardened aluminum mount and water- and smudge-repellent front coating lend weather-resistant handling, while the 0.34m minimum focus distance adds close-up versatility. It suits Nikon Z shooters who prioritize a walk-around 40mm prime for portraits and day-to-day shooting over an ultra-light travel lens.
Focal length 40mm
Aperture f/2.5
Mount Nikon Z
stabilization Yes
Weight 397 g
af type STM
80 Overall Score
Price MX$0
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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.
Owner sentiment has held steady over time
88/100Our AI sentiment read
Based on 12 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Focal Length Min | 40 |
| Focal Length Max | 40 |
| Elements | 10 |
| Groups | 6 |
Aperture
| Max Aperture | f/2.5 |
Build
| Mount | Nikon Z |
| Weight | 0.4 kg / 0.9 lbs |
AF & Stabilization
| AF Type | STM |
| Stabilization | Yes |
Focus
| Min Focus Distance | 40 |
vs Competition
| Spec | Viltrox AF 40mm F2.5 40mm | 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 | Canon RF 28-70mm f/2.8 IS STM |
|---|---|---|---|---|---|---|
| Focal Length | 40mm | 17-70mm | 17-28mm | 16-28mm | 12-60mm | 28-70mm |
| Max Aperture | f/2.5 | f/2.8 | f/2.8 | f/2.8 | f/2.8 | f/22 |
| Mount | Nikon Z | Fujifilm X | Nikon Z | Sony E | Micro Four Thirds | Canon RF |
| Stabilization | true | true | false | false | true | true |
| Weather Sealed | false | true | true | true | true | true |
| Weight (g) | 397 | 544 | 450 | 450 | 320 | 495 |
| AF Type | STM | RXD | Stepping Motor | Stepping AF Motor | linear motor | STM |
| Lens Type | - | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Viltrox AF 40mm F2.5 40mm | 87.4 | 85.7 | 52.9 | 96.8 | 41.2 | 88.9 | 80.5 | 33.3 | 80.7 | 83.4 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.8 | 87.2 | 69.7 | 85.9 | 91 | 84.4 | 63.6 | 89.3 | 85.2 | 83.4 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.4 | 87.2 | 76 | 85.9 | 88 | 84.4 | 90.7 | 67.3 | 69.1 | 37.8 |
| Sigma Contemporary 16-28mm f/2.8 DG DN Compare | 87.4 | 87.2 | 76 | 77.8 | 97.2 | 84.4 | 75.8 | 67.9 | 63.1 | 37.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98.1 | 87.2 | 84.6 | 51.7 | 91 | 84.4 | 44.5 | 93.1 | 68.1 | 83.4 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 87.4 | 24.1 | 72.8 | 80 | 86.2 | 21 | 98 | 76.8 | 89.3 | 98.6 |
