---
title: "Viltrox AF 40mm f/2.5 Air"
brand: "Viltrox"
mount: L-Mount
focal_length: 40
aperture: 2.5
angle_of_view: 58
lens_type: "Prime"
lens_category: ["Normal"]
weight: 169
year: 2026
weather_sealed: false
image_stabilization: false
price: 168
focus: "Auto"
filter_size: 52
max_magn: 0.14
close_focus: 0.34
diameter: 64
length: 53
date: 2026-09-22
draft: false
author: "Jan Wedekind"
featured_image: /lenses/viltrox/viltrox-40mm-f2-5.png
---

From Viltrox:

> * Full-Frame 40mm Prime for Street, Travel, Portraits, and Everyday Stories.
> * Lightweight 169g Body for Comfortable Everyday Carry.
> * Precision Optics: 10 Elements in 6 Groups (1ED, 3HR, 1Aspherical).
> * STM Motor for Fast, Silent Autofocus.
> * 0.34m Minimum Focusing Distance for Close-Up Detail.
> * 52mm Filter Thread and USB-C Firmware Upgrade Port.
> * Native L-Mount Support with In-Camera Lens Corrections.

[Official Website](https://viltrox.com/products/af-40mm-f2-5-l)

Reviews:

* Digital Camera World: [Viltrox AF 40mm f/2.5 review: A small, lightweight prime for both full-frame and APS-C mirrorless cameras](https://www.digitalcameraworld.com/reviews/viltrox-af-40mm-f25-review-a-small-lightweight-prime-for-both-full-frame-and-aps-c-mirrorless-cameras), Matthew Richards, Apr 2024
* Robin Wong: [Viltrox 40mm F2.5 Review](https://robinwong.blogspot.com/2024/04/viltrox-40mm-f25-review.html), Robin Wong, Apr 2024
* phillipreeve.net: [Review: Viltrox 40mm f/2.5 STM ASPH ED IF](https://phillipreeve.net/blog/review-viltrox-40mm-f-2-5-stm-asph-ed-if/), Martin, May 2024
* Radojuva: [Review of Viltrox AF 40mm 1:2.5 STM ASPH ED IF Air](https://radojuva.com/en/2024/08/viltrox-af-40mm-2-5-stm-ashp-ed-if-z-e-review/), Arkady Shapoval, Aug 2024
* George Holden: [The Naughty 40: Viltrox 40mm f/2.5 Sony FE Mount Review](https://georgeholden.media/blog/viltrox-40mm-review), George Holden, Sep 2024
* Fstoppers: [We Review the Viltrox 40mm f/2.5 Lens](https://fstoppers.com/reviews/review-viltrox-40mm-f25-lens-679376), Gary McIntyre, Oct 2024
* Fstoppers: [Viltrox AF 40mm f/2.5 Air Review: One Tiny Prime to Replace 35mm and 50mm](https://fstoppers.com/reviews/viltrox-af-40mm-f25-air-review-one-tiny-prime-replace-35mm-and-50mm-717038), Simon Burn, Nov 2025
* Fstoppers: [We Review the Latest Viltrox Air Series Lens Af 40mm f/2.5 L: An Exceptional Lightweight Everyday Carry Lens](https://fstoppers.com/gear/review-latest-viltrox-air-series-lens-af-40mm-f25-l-exceptional-lightweight-904678), Zhen Siang Yang, Sep 2026

YouTube:

* Adrian Alford Photography: [Viltrox AF 40mm F2.5 Nikon Z Review | Compact Affordable Prime Lens!](https://www.youtube.com/watch?v=-4GI4OPCf6c), Apr 2024
* Christopher Frost: [Viltrox 40mm f/2.5 lens review](https://www.youtube.com/watch?v=eF4j7_jD38c), Apr 2024
* Matti Sulanto: [Must Have Lens For Nikon Z –Viltrox 40mm F2.5 Sharp And Affordable](https://www.youtube.com/watch?v=0RLLB3NOwH0), Jun 2024
* Christopher Frost: [Viltrox AF 40mm f/2.5 on Sony FE lens review](https://www.youtube.com/watch?v=qEOxNyRt314), Aug 2024
* ZY Cheng: [Unbelievably Good Lens for $168 \\ Viltrox 40mm F2.5 For Sony E Mount](https://www.youtube.com/watch?v=vGIjoIQ9FLk), Aug 2024
* Pav SZ: [Best Budget Lens? Viltrox 40mm f2.5 Review](https://www.youtube.com/watch?v=jM1r4unMBcA), Sep 2024
* Dylan Blackburn: [The Best Sony Lens for Beginner Photographers? - Viltrox 40mm f/2.5](https://www.youtube.com/watch?v=LY_SeTfKxlU), Sep 2024
* Victor Laforteza: [Why the Viltrox 40mm f/2.5 is the best compact lens (Shot on Sony A7CII)](https://www.youtube.com/watch?v=lAp_9G3YlQE), Sep 2024
* Dustin Abbott: [Viltrox AF 40mm F2.5 E-mount Review | Making "Normal" Affordable](https://www.youtube.com/watch?v=UCwLjFpQx6Q), Oct 2024
* Phillip Skraba: [Viltrox 40mm f2.5 Sony Lens (Full Frame)](https://www.youtube.com/watch?v=ES8tSsg5yzA), Nov 2024
* Matt Jacobs: [One Reason No One Will Buy This - Viltrox 40mm f/2.5 (Nikon Z Mount)](https://www.youtube.com/watch?v=bzjg1-AB0d8), Dec 2024
* Christopher Frost: [Viltrox AF 40mm f/2.5 'Air' lens review on L-mount](https://www.youtube.com/watch?v=sliyJZbm1bE), Sep 2026
* Pav SZ: [I Tested ALL 4 New Viltrox L-Mount Lenses](https://www.youtube.com/watch?v=-7ivmv8bOGg), Sep 2026
* Micro Four Nerds: [a HANDFUL of tiny lenses for £700?!](https://www.youtube.com/watch?v=5NItPf369NE), Sep 2026
* Scott Edwards: [These Cheap Viltrox Lenses Are Actually A Big Deal](https://www.youtube.com/watch?v=tifcueIBXvE), Sep 2026