Viltrox AF 40mm f/2.5 FE 40mm
The 40mm focal length on full-frame offers a distinctive perspective between standard 35mm and 50mm primes, and the bright f/2.5 aperture pairs with a compact, lightweight build. Its STM stepping motor delivers fast, quiet autofocus, while one ED and three HR elements control optical aberrations for crisp results. This lens suits portrait photographers and everyday Sony E-mount shooters who want an affordable prime with a unique, versatile field of view.
Focal length 40mm
Aperture f/16
Mount Sony E
af type STM
lens type prime
42 Overall Score
Price $168
Snapshot
Pros & Cons
Pros
- Strong af (86th percentile) 86th
- Strong macro (67th percentile) 67th
Cons
- Below average bokeh (31st percentile)
- Below average versatility (34th percentile)
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 40 |
| Focal Length Max | 40 |
| Elements | 10 |
| Groups | 6 |
| ED Elements | 1 |
Aperture
| Max Aperture | f/16 |
| Min Aperture | f/2.5 |
| Diaphragm Blades | 7 |
Build
| Mount | Sony E |
| Format | full-frame |
| Weather Sealed | No |
| Filter Thread | 52 |
AF & Stabilization
| AF Type | STM |
| Stabilization | No |
Focus
| Min Focus Distance | 340 |
| Max Magnification | 1:7.14 |
vs Competition
| Spec | Viltrox AF 40mm f/2.5 FE 40mm | Tamron Di III VC 28-300mm f/4-7.1 VXD | Sigma Contemporary 18-50mm f/2.8 DC DN | Sony E SEL18135 | Nikon NIKKOR 2178 | Canon EF-S 55-250mm f/4-5.6 IS STM |
|---|---|---|---|---|---|---|
| Focal Length | 40mm | 28-300mm | 18-50mm | 18-135mm | 16-85mm | 55-250mm |
| Max Aperture | f/16 | f/4 | f/2.8 | f/3.5 | f/3.5 | f/4 |
| Mount | Sony E | Sony E | Sony E | Sony E | Nikon F | Canon EF-S |
| Stabilization | false | true | false | true | true | true |
| Weather Sealed | false | true | true | false | false | false |
| Weight (g) | - | 590 | 290 | 326 | 485 | 375 |
| AF Type | STM | VXD linear motor | stepping motor | Linear motor | AF-S | STM |
| Lens Type | prime | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Stabilization |
|---|---|---|---|---|---|---|---|---|
| Viltrox AF 40mm f/2.5 FE 40mm | 85.5 | 30.5 | 53.3 | 67.3 | 45.4 | 44.1 | 33.5 | 36.2 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 97.7 | 81.2 | 63.7 | 85.4 | 96.4 | 69.6 | 97.8 | 81.4 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 85.5 | 84.7 | 85.1 | 91.6 | 81.3 | 86.6 | 78.6 | 36.2 |
| Sony E SEL18135 Compare | 97.7 | 78.8 | 71.4 | 39.2 | 77.6 | 80.4 | 96 | 81.4 |
| Nikon NIKKOR 2178 Compare | 53.9 | 78.8 | 55.3 | 64.7 | 67.4 | 80.4 | 94.3 | 92.8 |
| Canon EF-S 55-250mm f/4-5.6 IS STM Compare | 85.5 | 68.3 | 65.9 | 32.7 | 73.9 | 69.6 | 92.3 | 92.8 |
Price
Value & Pricing
From $168
B&H Photo 1 offer From $168
We started tracking prices for this product on May 12, 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.
