New Release Lens AF 25mm F1.7 Air E/X/Z-mount

Viltrox AF 25mm F1.7 size comparison vs Fujifilm XC35mm F2 and Sony 28mm F2 on camera

Launch Day
February

28,2025

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Viltrox 28mm F4.5 XF lens thickness comparison with a coin and iPhone, showcasing ultra-thin 15.25mm design

Launch Day February 6,2025

Title

Viltrox AF 25mm F1.7 Air: The Ultimate Lightweight Prime for Storytellers

At a time when photographic equipment is becoming increasingly bulky, the Viltrox Air series of lenses has entered the market with the concept of "reducing weight without sacrificing quality". The newly released AF 25mm F1.7 (equivalent to full-frame 38mm) has a weight of 170g-180g grams, a large aperture of F1.7, and an STM silent motor, pushing the cost-effectiveness of entry-level fixed-focus lenses to a new height. We believe this will be an excellent first lens for beginners in portrait or street photography. Read on to find out more.

Viltrox AF 25mm F1.7 Air lens next to smartphone and credit card, showcasing ultra-lightweight 220g design

When "Air" has weight: Redefining lightweight photography

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Design and control: an invisible creative tool in your palm

Minimalist aesthetics and industrial ingenuity

Weight comparison: lighter than a can of Coke , when paired with Fuji X-S20 or Sony ZV-E10, the grip feels almost "nothing".
Material technology: lightweight composite material + metal bayonet, lotus-shaped lens hood can be reversed, optimized for portable photography.
Control highlights:
No aperture ring design, relying on the body dial to adjust parameters, simplifying the operation logic;
USB-C firmware upgrade interface, future expandable focus algorithm.

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Optical performance: a leapfrog challenge for entry-level lenses

The center sharpness is sufficient to meet the needs of 4K video cropping. The 9 circular aperture blades create a soft and round out-of-focus light spot, and the slight dark corner adds a sense of straight-out atmosphere. The lens group is equipped with 1 ED ultra-low dispersion lens and 2 high-refractive index lenses to effectively suppress purple fringing. HD nano-coating may appear slightly fogged under midday backlight, The 38mm golden angle of view (equivalent to full frame) balances the environmental narrative of 35mm and the subject focus of 50mm. With the closest focusing distance of 0.3 meters, it can easily handle both close-ups of still lifes in cafes and snapshots of street culture.

Exploded view of Viltrox 25mm F1.7 Air optical structure with ED and HR lens elements labeled

Lens configuration

Viltrox 25mm F1.7 Air size comparison in hand, highlighting compact 45mm length for Fujifilm X-series cameras

AF 25mm F1.5 MTF Graph

Its presence is unbelievably subtle—you might even forget there's a lens on your camera until the F1.7 bokeh reminds you it's there.

Title

Real-life shooting experience: the duality of burden-free creation

Street Photography

AF 25mm F1.7 offers robust and reliable video shooting capabilities, supports inbody image stabilization, is lightweight and compact, and features low distortion.

The focus breathing effect is barely noticeable during focus transitions, resulting in a more immersive storytelling experience.

Street photography sample with Viltrox 25mm F1.7 Air: night scene with F1.7 bokeh rendering neon lights as creamy circles

Backlit portrait with Viltrox 25mm F1.7 Air: controlled flare and natural skin tones under harsh sunlight

Close-up shot of coffee cup using Viltrox 25mm F1.7 Air at 0.3m, showcasing sharp details and smooth background blur

Vlogger using Viltrox 25mm F1.7 Air on Sony ZV-E10 for handheld walking vlog with stabilized footage

Travel

When you embark on a journey, there are surprises around every corner, and this portable lens is your best travel companion. It is light and compact, and can be put into your pocket, so you can walk through the ancient town or stroll in the mountains without any burden; fast and accurate autofocus and F1.7 large aperture, even in low light environment at dawn or dusk, can easily capture the fleeting beautiful moments. Whether it is the gorgeous city neon or the quiet natural scenery, it can truly present every detail, making your travel memories more vivid and fresh.

Video Performance

Breathing Effect: The lens ensures ultra-smooth focus transitions with an almost imperceptible breathing effect.

Stabilization Synergy: When paired with in-body 5-axis stabilization (e.g., Fujifilm X-H2S), motion stability rivals that of a gimbal.

Audio-Friendly: STM motor noise is lower than ambient background noise, making outdoor vlogs possible without an external microphone.

Title

It’s not just a lens—it’s a "translator" for creative scenes.

For travelers

Light enough to slip into a jacket pocket, yet capable of capturing dazzling F1.7 bokeh beneath starry mountain skies.

For street photographers

Discreet enough to go unnoticed, yet sharp enough to freeze fleeting glances and gestures.

For content creators

So silent you’ll forget the motor exists, yet it brings a natural, breathing quality to every frame.

Vlogger using Viltrox 25mm F1.7 on Sony ZV-E10 for handheld street vlogging

Title

A Manifesto for the Era of Lightweight Creativity

The Viltrox AF 25mm F1.7 Air is not a specs monster but a practitioner of the "philosophy of subtraction." Weighing just (170g-180g), it carries the optical ambition of an F1.7 aperture, while its silent STM motor redefines "effortless creation."

The reason to choose the Viltrox AF 25mm F1.7 Air lies in every seamless shooting experience—when you stop worrying about weight and operation, inspiration naturally finds its way to you.