Specifications#
- Brand
- Viltrox
- Model
- AF 13mm F1.4
- Lens type
- Ultra-wide prime
- Focal length
- 13 mm
- Maximum aperture
- f/1.4
- Image circle
- APS-C (23.5×15.6 mm)
- Mount(s)
- Fujifilm X-mount, Sony E-mount, Nikon Z
- 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 13 mm | Equiv. aperture (DoF) |
|---|---|---|
| APS-C | 20 mm · 95° | f/2.1 |
| APS-C (Canon) | 21 mm · 92° | f/2.2 |
| Micro Four Thirds | 26 mm · 80° | f/2.8 |
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/1.8 on aps-c.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 13 mm | f/1.4 | 32.8 cm | 1.44 m | 23.3 m | ∞ | 6.19 m | 0.3% |
| 13 mm | f/4 | 1.15 m | 23.9 m | ∞ | ∞ | 2.17 m | 0.1% |
| 13 mm | f/8 | 11.1 m | ∞ | ∞ | ∞ | 1.09 m | 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 13 mm | NPF at 13 mm, f/1.4 |
|---|---|---|---|
| APS-C | 1/20 s | 26 s | 13 s |
| APS-C (Canon) | 1/20 s | 24 s | 12 s |
| Micro Four Thirds | 1/25 s | 19 s | 11 s |
Compatible cameras#
Bodies in our database with a native Fujifilm X-mount, Sony E-mount and Nikon Z mount. Full-frame bodies switch to an APS-C crop with this lens.
- Sony α7R VI crop mode
- Fujifilm X-E5 2025
- Nikon Z5II crop mode
- Sony α7 V crop mode
- Nikon ZR crop mode
- Fujifilm X-T30 III 2025
- Sony ZV-E10 II 2024
- Sony α1 II crop mode
- Sony α9 III crop mode
- Nikon Z50II 2024
- Nikon Z6III crop mode
- Fujifilm X-M5 2024
- Fujifilm X-T50 2024
- Nikon Z8 crop mode
- Nikon Zf crop mode
- Fujifilm X-S20 2023
- Sony α6700 2023
- Sony ZV-E1 crop mode
- Sony α7C II crop mode
- Sony α7CR crop mode
- Sony α7R V crop mode
- Nikon Z30 2022
- Fujifilm X-H2S 2022
- Fujifilm X-T5 2022
- Sony FX30 2022
- Fujifilm X-H2 2022
- Sony FX3 crop mode
- Sony ZV-E10 2021
- Sony α1 crop mode
- Nikon Z9 crop mode
- Nikon Zfc 2021
- Fujifilm X-E4 2021
- Fujifilm X-T30 II 2021
- Sony α7 IV crop mode
- Sony α7S III crop mode
- Nikon Z5 crop mode
- Fujifilm X-S10 2020
- Fujifilm X-T200 2020
- Fujifilm X-T4 2020
- Nikon Z7II crop mode
Adapt it to other systems#
Similar lenses#
- Samyang 14mm f/2.8 AE ED AS IF UMC f/2.8
- Samyang AF 14mm f/2.8 f/2.8
- Sigma 14mm f/1.8 DG HSM | A f/1.8
- Sony FE 14mm f/1.8 GM f/1.8
- Viltrox AF 14mm f/4.0 f/4
- 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
- Zeiss Touit 2.8/12 f/2.8
- Laowa 15mm f/2.0 Zero-D f/2
- Viltrox AF 15mm F1.7 Air f/1.7
Frequently asked questions#
Is the Viltrox AF 13mm F1.4 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 13mm F1.4 equivalent to on APS-C?
Its focal length is already the real value for APS-C: 13 mm frames like 20 mm on full frame.
What is the Viltrox AF 13mm F1.4 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