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Quick specs
| Focal length | 27mm (about 40.5mm full-frame equivalent) |
|---|---|
| Aperture range | f/1.2 to f/16 |
| Mounts | Sony E, Nikon Z, Fujifilm X (APS-C) |
| Optics | 15 elements in 11 groups (2 ED, 1 aspherical, 5 high-refractive) |
| Aperture blades | 11 |
| Minimum focus / max magnification | 0.28m / 0.15x |
| Filter size | 67mm |
| Weight | About 565g (E), 605g (Z), 560g (X) |
How we researched
This review is based on Viltrox AF 27mm F1.2 Pro (APS-C)'s official product page, its published specifications and pricing, and a comparison with leading alternatives in tech & gadgets. We have not used this product ourselves; scores reflect how it compares on paper.What it is
The Viltrox AF 27mm F1.2 Pro is an autofocus prime lens for APS-C mirrorless cameras. On those sensors, 27mm works out to roughly a 40.5mm full-frame equivalent, a natural standard view that suits street, documentary, portrait and general shooting.
It comes in three versions: Sony E-mount, Nikon Z-mount and Fujifilm X-mount. Optics and specs are the same across all three, with small differences in size and weight.
Viltrox pitches it as part of its Pro series, aimed at shooters who want high resolution and strong background blur from a single fast lens.
Key features
The headline is the f/1.2 maximum aperture. Viltrox says it delivers very shallow depth of field and smooth background blur, helped by 11 aperture blades. The optical design uses 15 elements in 11 groups, including two ED elements that Viltrox says suppress chromatic aberration and one aspherical element for distortion control.
Focus is driven by an STM stepping motor with a lead screw, using internal focusing. Viltrox says it supports camera features such as eye AF and animal AF and is quiet, which matters for video.
Controls are generous for the price class: an AF/MF switch, an aperture ring with a click on/off switch for smooth video adjustments, and a focus lock button. A USB-C port allows firmware updates, a useful way to keep compatibility current with new camera bodies.
Build and handling
Viltrox describes a full metal body with a brass mount, a rubber sealing gasket, a dust ring and a dust- and splash-resistant structure. The front element has a water- and smudge-resistant coating, according to the brand.
The catch is bulk. The Sony version measures about 82 x 92mm and weighs around 565g, and the Nikon Z version is about 605g. That is heavy for an APS-C prime and may feel front-heavy on smaller bodies.
Minimum focus distance is 0.28m with 0.15x maximum magnification, so it handles tabletop and detail shots but is not a macro substitute.
Price and value
The Viltrox store lists the Sony E-mount version at $578, though the page also displays a $545 figure, so the actual price may vary with promotions.
For that money you get an f/1.2 aperture, weather-resistance claims, physical controls and firmware updatability. Fast first-party APS-C primes with similar features usually cost more, which is where this lens makes its case.
Coverage includes a 14-day return or exchange window and a 1-year limited warranty, per the store page. The page shows 33 customer reviews, mostly five stars, though store reviews are a limited signal.
Who it suits
It fits APS-C shooters who want a fast standard prime for low light, portraits with blurred backgrounds, and video work where the declicked aperture and quiet motor help.
It is a weaker fit for travel or street shooters who value a small, light kit. If you mostly shoot stopped down, an f/1.4 or f/1.8 lens will be cheaper, smaller and lighter.
How it scored
Alternatives
| Product | Best for | |
|---|---|---|
| Viltrox AF 27mm F1.2 Pro (APS-C)This review | APS-C shooters on Sony E, Nikon Z or Fujifilm X who want a fast, full-featured standard prime for portraits, street and video without paying first-party prices. | Check price |
| Sigma 23mm f/1.4 DC DN Contemporary | Lighter, cheaper fast prime | |
| Sigma 30mm f/1.4 DC DN Contemporary | Tight budgets and small kits | |
| Fujifilm XF 23mm f/1.4 R LM WR | Fujifilm users wanting first-party |
FAQ
Is the Viltrox 27mm F1.2 Pro full frame?
No. It is designed for APS-C cameras. On an APS-C sensor it gives a field of view similar to about 40.5mm on full frame.
Does the Viltrox 27mm F1.2 Pro support eye autofocus?
Viltrox says the lens supports eye AF, animal AF and other subject recognition features. Actual behavior depends on your camera body and firmware.
Is the Viltrox 27mm F1.2 Pro weather sealed?
Viltrox describes a dust- and splash-resistant design with a rubber mount gasket and a water-repellent front coating. That is the brand's claim, not a guarantee of waterproofing.
How much does the Viltrox 27mm F1.2 Pro weigh?
About 565g for the Sony E version, 605g for Nikon Z and 560g for Fujifilm X, according to Viltrox. That is heavy for an APS-C prime.
What filter size does the Viltrox 27mm F1.2 Pro use?
It takes standard 67mm filters on all three mount versions.
Can the lens firmware be updated?
Yes. The lens has a USB-C port that Viltrox says is used for firmware upgrades.
Final verdict
The Viltrox AF 27mm F1.2 Pro offers an unusually complete feature set for its price, with an f/1.2 aperture, pro-style controls and claimed weather resistance. If you can live with the weight and want maximum background blur on APS-C, it deserves a spot on your shortlist. If portability matters more, a smaller f/1.4 prime is the better buy.
