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.
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.
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 | Autofocus |
| Stabilization | Yes |
Focus
| Min Focus Distance | 40 |
vs Competition
| Spec | Viltrox AF 40mm F2.5 40mm | Tamron Di III VC 28-300mm f/4-7.1 VXD | Sigma Contemporary 18-50mm f/2.8 DC DN | Sony E 18-135mm f/3.5-5.6 OSS | Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR | Panasonic LUMIX S S-E100 |
|---|---|---|---|---|---|---|
| Focal Length | 40mm | 28-300mm | 18-50mm | 18-135mm | 16-50mm | 100mm |
| Max Aperture | f/2.5 | f/4 | f/2.8 | f/3.5 | f/3.5 | f/2.8 |
| Mount | Nikon Z | Sony E | Sony E | Sony E | Nikon Z | L-Mount |
| Stabilization | true | true | false | true | true | false |
| Weather Sealed | false | true | true | false | false | true |
| Weight (g) | 397 | 590 | 290 | 326 | 135 | 298 |
| AF Type | Autofocus | VXD linear motor | stepping motor | Linear motor | Stepping Motor | Dual phase linear motor |
| Lens Type | - | zoom | zoom | zoom | zoom | macro |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Viltrox AF 40mm F2.5 40mm | 53.9 | 85.8 | 51 | 96.8 | 40.2 | 88.7 | 80.9 | 33.6 | 80.6 | 82.4 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 98 | 78.2 | 65.1 | 85.8 | 96.7 | 66.3 | 91.2 | 97.7 | 55 | 82.4 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 86.9 | 82.1 | 86.1 | 91.7 | 82.2 | 84.2 | 80.9 | 78.6 | 89.6 | 36.8 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98 | 75.7 | 72.5 | 40.3 | 78.5 | 77.6 | 44.7 | 95.8 | 89.6 | 82.4 |
| Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR Compare | 86.9 | 75.7 | 92.7 | 45.2 | 74.1 | 77.6 | 0 | 83.3 | 80.6 | 95.3 |
| Panasonic LUMIX S S-E100 Compare | 98 | 87.3 | 85.8 | 82 | 83.4 | 84.2 | 80.9 | 33.6 | 64.8 | 36.8 |