Viltrox AF 40mm f/2.5

Announced April 25, 2024

Compare Viltrox AF 40mm f/2.5
81

PixelMeter The PixelMeter is our 1–100 aggregate of reviewer scores from trusted publications and creators. Weighted by source tier — not a raw average, and not PetaPixel’s own review.

Reviewer Consensus

Strong

The Viltrox AF 40mm f/2.5 is a highly compact, lightweight prime lens that delivers sharp images and reliable autofocus for an exceptionally low price. While it lacks premium features like weather sealing or physical control switches, it remains a practical and portable choice for everyday street and travel photography.

Weighted from 29 reviewer scores

Pros

  • Sharp image quality across the frame
  • Effective autofocus performance with minimal breathing
  • High affordability and value
  • Extremely compact and lightweight design
  • Solid build quality for the price

Cons

  • Lacks weather sealing
  • Absence of physical controls like AF/MF switch or aperture ring
  • Corner softness and vignetting at wider apertures
  • Limited close-focusing capabilities
  • Susceptibility to flare and ghosting
  • Launch price $158 (USD)
  • Focal length & aperture 40mm f/2.5
  • Mount & coverage Sony E, Nikon Z, Leica LTM Full-Frame
  • Stabilization None
  • Close focus 34 cm (0.14x)
  • Filter thread 52mm
  • Autofocus motor Stepper motor
  • Weight & size 180g (6.3 oz) · 68 x 55.9 mm (2.68 x 2.20 in)

Expert Reviews

All 29 expert reviews, weighted into the PixelMeter score.

  • OpticalLimits 7/10

    The Viltrox AF 40mm f/2.5 Z is a bit of an oddity as a prime lens. While it performs quite well in most aspects, it doesn't stand out overall.

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  • phillipreeve.net

    The Viltrox 40mm f/2.5 STM ASPH ED IF is a very compact and sharp lens. [...] Its compact size and low weight make it a highly portable lens, perfect for carrying around on walks, street photography, or travel.

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  • Digital Camera World

    I really like the focal length of 40mm for street photography and everyday shooting, and the Viltrox AF 40mm F2.5 obliges. I love that it’s so compact and lightweight, yet well built and with respectable performance, all at a very affordable purchase price.

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  • PCMag

    The Viltrox AF 40mm F2.5 is among the most affordable autofocusing lenses you can get for a full-frame camera, and while it omits some creature comforts, it offers impressive picture quality for the price.

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  • Radojuva

    Viltrox 40/2.5 is a lens with a good price-quality ratio. It is lightweight, has good optical performance and a quiet focusing motor.

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  • Geeky Nerdy Techy

    This lens is incredible considering its price. It's an absolute bargain, and if you're on a budget and you want to get this particular focal length, 40mm for full-frame, it's a no-brainer.

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  • Robin Wong

    The Viltrox 40mm F2.5 is an example of what a great budget lens can do, in a truly small and compact form factor, the lens can deliver really good results.

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  • ZY Cheng

    I made sure to keep my expectations realistic, but I can quite safely say this is a lens which will easily exceed expectations for what you can get out of a $168 full-frame autofocus lens.

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  • Fstoppers

    The Viltrox 40mm f/2.5 “Air” series lens is a fantastic option for photographers looking for a compact, affordable prime lens with solid performance.

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  • Andrei Dima

    If you're looking for a lens like this, a budget portrait and street photography lens, I think you should consider the Viltrox 40mm F2.5.

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  • Matti Sulanto

    I think for less than $160 US this lens is a no-brainer for any Nikon Z user, except if you already own the pretty fantastic Nikkor 40mm f/2 lens, then this may not make sense.

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  • 5050 Travelog

    As a value option or a first lens until you have the budget for an upgrade you can certainly get a decent start with the AF 40mm f/2.5 Z as long as you do not expect an optical wonder lens.

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  • Thomas Fransson 7/10

    So yeah, 40mm, it's actually a pretty interesting and fun focal length to shoot with. So if you're looking for a new, fun, and inexpensive walking around lens, I could highly recommend you to check this out.

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  • NO limits ON

    To conclude guys, for $170 you get a lens that has pretty good optical performance, not that many flaws to be honest. Of course it's a plastic lens, but you don't need to throw it all around like playing football with it, but other than that it checks almost all the boxes.

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  • Wes Perry 10/10

    This is a fantastic lens for far less than half the price, less than a third of the price, so this is an obvious 10 out of 10 for value, which propels this lens all the way up to an 86.3% for a total score. That is a fantastic score.

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  • WORTH IT OR NOT?

    I think the AF is fantastic on it. I think I only missed two shots when I was taking photographs with the Viltrox AF 40mm f/2.5, so I think the AF works great with the Sony AF system.

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  • Victor Laforteza

    This is a 40 that's only $168. If you want to dabble with this focal length, this is a cheap way to do it compared to the Sony 40mm G lens, which is at $548.

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  • Ralph Mayhew Photography

    It's the lens you buy. If you wanted a prime lens, you wanted to experiment with it. You wanted to see how much you enjoy prime lenses. You wanted a 40 mil in your caliber, your arsenal of lenses, but at the same time, you didn't want to spend a bomb.

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  • Roma Fedorov

    I can highly recommend this Viltrox AF 40mm f/2.5, especially if you're just starting out or using cameras like the Sony A7C or the ZV-E1 and want to keep your setup as compact as possible.

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Specifications

General

Announcement date April 25, 2024
Launch MSRP $158
Lens mount Sony E, Nikon Z, Leica LTM
Image circle coverage Full-Frame
Lens type Prime

Optical Design

Elements 10
Groups 6
Special elements 1 ED, 3 HR, 1 Aspherical
Coatings Nano-coated

Focal Length & Aperture

Focal length (wide) 40mm
Max aperture f/2.5
Minimum aperture f/16
Diaphragm blades 7

Angle of View

Diagonal angle of view 56.7°

Focusing

Autofocus motor Stepper motor
Minimum focus distance 34 cm
Maximum magnification 0.14x
Focus mechanism Internal focus

Stabilization

Optical stabilization (OIS) No

Controls

Aperture ring No

Build

Weight 180g (6.3 oz)
Maximum diameter 68mm (2.68 in)
Length 55.9mm (2.20 in)
Filter thread 52mm
Weather sealing None