Viltrox AF 9mm f/2.8 Air - Lens review and specs

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Sony E Nikon Z Fujifilm X Wide Angle Prime aps-c 2026

Weather Sealed

Autofocus

Breathing Correction

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Useful links

Official Website

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Compare with

9mm

Focal length

f/2.8

Max aperture

175 g

Weight

14mm35mm85mm200mm600mm

▲ 9mm

Max aperture

f/1.8

f/2.8

f/5.6

Constant Aperture

Zoom Ratio: 1x

Aperturef/2.8

f/2.8f/16

Near focus1' 8"

Far focus4' 9"

Total DOF3' 1"

Hyperfocal5' 1"

Subject distance2' 6"

Focal length9 mm

Aperturef/2.8

SensorAPS-C

Illustrative scene preview based on this lens's focal length, aperture, and sensor coverage.

This preview uses 9mm, f/2.8, and APS-C. Subject distance is estimated to keep lens previews comparable.

Min aperture: f/16
Diaphragm blades: 7

Optics

Optical construction: 13 elements in 11 groups
Special elements: 2 aspherical, 3 ED, 3 HR
Coatings: HD multilayer nano coating

Focusing

Minimum focus: 13 cm
Max magnification: 0.15×
AF motor: STM + lead screw

Physical

Weight: 175 g
Dimensions: ⌀65mm × 57mm
Filter thread: 58 mm
Hood included: Yes
Color: Black, Silver

Recommended Use

Ideal for: Architecture, astro, Landscapes, Travel, Vlogging

Release year: 2026
Approx price: $199 USD

The best

9mm APS-C ultra-wide, 175g and 113.8° view

Also

13/11 optics, STM, sealed body, USB-C and 58mm filters

Summary

The Viltrox AF 9mm f/2.8 Air is an APS-C ultra-wide prime designed for compact mirrorless systems. In Fujifilm X-mount it delivers a 113.8° angle of view and an approximately 13.5mm full-frame equivalent perspective, making it a natural fit for landscapes, architecture, tight interiors, travel and immersive vlogging. Its appeal is very much in line with the Air series: a tiny body, just 175g of weight, a practical 58mm filter thread and a $199 official price, while still offering autofocus and a surprisingly serious optical formula.

The official specification is concrete: 13 elements in 11 groups, including 2 aspherical, 3 ED and 3 HR elements, a 7-blade diaphragm, f/2.8 maximum aperture, f/16 minimum aperture, 0.13m minimum focus distance and 0.15x maximum magnification. Viltrox also lists an STM lead-screw motor, internal focus, a sealed body, metal mount, USB-C firmware updates and minimal focus breathing. OpticalLimits adds useful field context: the lens is impressively sharp, keeps RAW distortion low and delivers outstanding value, with heavy vignetting as the most obvious weakness.

In practical terms, the Viltrox AF 9mm f/2.8 Air is for photographers and creators who want an extreme wide view without carrying a bulky lens. It suits city scenes, architecture, cramped rooms, dramatic landscapes, group selfies, travel video and perspective-heavy compositions. It is not meant for classic portraiture, sports, wildlife or deep background blur, and it does not replace a larger professional ultra-wide zoom. Its strength is simpler and very useful: it adds a genuinely wide, lightweight and affordable perspective to an APS-C kit.