Specifications#
- Brand
- Viltrox
- Model
- AF 9mm f/2.8 Z/E/XF
- Lens type
- Ultra-wide prime
- Focal length
- 9 mm
- Maximum aperture
- f/2.8
- Image circle
- APS-C (23.5×15.6 mm)
- Mount(s)
- Nikon Z, Sony E-mount, Fujifilm X-mount
- Projection
- Rectilinear
- Lensfun correction profile
- Yes — distortion/vignetting/TCA
Equivalent focal length on different cameras#
Field of view and depth-of-field equivalence when this lens is used on bodies with different sensor sizes (natively or via an adapter).
| Camera format | At 9 mm | Equiv. aperture (DoF) |
|---|---|---|
| APS-C | 14 mm · 115° | f/4.2 |
| APS-C (Canon) | 14 mm · 112° | f/4.5 |
| Micro Four Thirds | 18 mm · 100° | f/5.6 |
Depth of field & background blur#
Computed on its native APS-C format (CoC 20 µm). “Blur @2 m” is the size of an out-of-focus point at infinity, as a percentage of frame width, with the subject at 2 m — a simple bokeh index. Full table: 14 mm f/2.8 on aps-c.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 9 mm | f/2.8 | 2.43 m | ∞ | ∞ | ∞ | 1.49 m | 0.1% |
| 9 mm | f/4 | 22.8 m | ∞ | ∞ | ∞ | 1.04 m | 0.0% |
| 9 mm | f/8 | ∞ | ∞ | ∞ | ∞ | 52.7 cm | 0.0% |
Handheld & night-sky limits#
NPF assumes typical 20–24 MP sensors (≈6 µm pixels on full frame, ≈3.9 µm on APS-C, ≈3.3 µm on Micro Four Thirds).
| Body | Min. handheld shutter (longest focal) | 500 rule at 9 mm | NPF at 9 mm, f/2.8 |
|---|---|---|---|
| APS-C | 1/13 s | 37 s | 24 s |
| APS-C (Canon) | 1/15 s | 35 s | 23 s |
| Micro Four Thirds | 1/20 s | 28 s | 22 s |
Compatible cameras#
Bodies in our database with a native Nikon Z, Sony E-mount and Fujifilm X-mount mount. Full-frame bodies switch to an APS-C crop with this lens.
- Sony α7R VI crop mode
- Nikon Z5II crop mode
- Fujifilm X-E5 2025
- Sony α7 V crop mode
- Nikon ZR crop mode
- Fujifilm X-T30 III 2025
- Nikon Z50II 2024
- Nikon Z6III crop mode
- Sony ZV-E10 II 2024
- Sony α1 II crop mode
- Sony α9 III crop mode
- Fujifilm X-M5 2024
- Fujifilm X-T50 2024
- Nikon Z8 crop mode
- Nikon Zf crop mode
- Sony α6700 2023
- Fujifilm X-S20 2023
- Sony ZV-E1 crop mode
- Sony α7C II crop mode
- Sony α7CR crop mode
- Nikon Z30 2022
- Sony α7R V crop mode
- Sony FX30 2022
- Fujifilm X-H2S 2022
- Fujifilm X-T5 2022
- Fujifilm X-H2 2022
- Nikon Z9 crop mode
- Nikon Zfc 2021
- Sony FX3 crop mode
- Sony ZV-E10 2021
- Sony α1 crop mode
- Sony α7 IV crop mode
- Fujifilm X-E4 2021
- Fujifilm X-T30 II 2021
- Nikon Z5 crop mode
- Sony α7S III crop mode
- Nikon Z7II crop mode
- Fujifilm X-S10 2020
- Fujifilm X-T200 2020
- Fujifilm X-T4 2020
Adapt it to other systems#
Similar lenses#
- Laowa 9mm f/2.8 Zero-D f/2.8
- Laowa 9mm f/5.6 FF RL f/5.6
- Laowa 10mm f/2.8 Zero-D FF f/2.8
- Samyang 10mm f/2.8 ED AS NCS CS f/2.8
- Voigtländer Heliar-Hyper Wide 10mm F5.6 f/5.6
- Samyang 8mm f/2.8 UMC Fish-eye f/2.8
- Samyang 8mm f/3.5 Fish-Eye CS f/3.5
- Sony E 11mm f/1.8 f/1.8
- Laowa 12mm f/2.8 Zero-D f/2.8
- Samyang 12mm f/2.0 NCS CS f/2
- Samyang 12mm f/2.8 Fish-Eye ED AS NCS f/2.8
- Samyang AF 12mm f/2.0 f/2
Frequently asked questions#
Is the Viltrox AF 9mm f/2.8 Z/E/XF full frame?
No — it is designed for APS-C sensors. On a full-frame body it vignettes or triggers crop mode.
What is the Viltrox AF 9mm f/2.8 Z/E/XF equivalent to on APS-C?
Its focal length is already the real value for APS-C: 9 mm frames like 14 mm on full frame.
What is the Viltrox AF 9mm f/2.8 Z/E/XF good for?
As a ultra-wide prime it suits astrophotography, landscapes and dramatic perspectives.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources