Specifications#
- Brand
- Samyang
- Model
- AF 12mm f/2.0
- Lens type
- Ultra-wide prime
- Focal length
- 12 mm
- Maximum aperture
- f/2
- Image circle
- Full frame (36×24 mm)
- Mount(s)
- 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 12 mm | Equiv. aperture (DoF) |
|---|---|---|
| Full frame | 12 mm · 122° | f/2.0 |
| APS-C | 18 mm · 99° | f/3.0 |
| APS-C (Canon) | 19 mm · 96° | f/3.2 |
| Micro Four Thirds | 24 mm · 84° | f/4.0 |
Depth of field & background blur#
Computed on its native Full frame format (CoC 30 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 on full frame.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 12 mm | f/2 | 99.1 cm | 10.6 m | ∞ | ∞ | 2.41 m | 0.1% |
| 12 mm | f/4 | 5.11 m | ∞ | ∞ | ∞ | 1.21 m | 0.1% |
| 12 mm | f/8 | ∞ | ∞ | ∞ | ∞ | 61.2 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 12 mm | NPF at 12 mm, f/2 |
|---|---|---|---|
| Full frame | 1/13 s | 42 s | 21 s |
| APS-C | 1/20 s | 28 s | 16 s |
| APS-C (Canon) | 1/20 s | 26 s | 15 s |
| Micro Four Thirds | 1/25 s | 21 s | 14 s |
Compatible cameras#
Bodies in our database with a native Sony E-mount and Fujifilm X-mount mount.
- Sony α7R VI 2026
- Fujifilm X-E5 2025
- Sony α7 V 2025
- Fujifilm X-T30 III 2025
- Sony ZV-E10 II 2024
- Sony α1 II 2024
- Sony α9 III 2024
- Fujifilm X-M5 2024
- Fujifilm X-T50 2024
- Sony α6700 2023
- Fujifilm X-S20 2023
- Sony ZV-E1 2023
- Sony α7C II 2023
- Sony α7CR 2023
- Sony α7R V 2022
- Sony FX30 2022
- Fujifilm X-H2S 2022
- Fujifilm X-T5 2022
- Fujifilm X-H2 2022
- Sony FX3 2021
- Sony ZV-E10 2021
- Sony α1 2021
- Sony α7 IV 2021
- Fujifilm X-E4 2021
- Fujifilm X-T30 II 2021
- Sony α7S III 2020
- Fujifilm X-S10 2020
- Fujifilm X-T200 2020
- Fujifilm X-T4 2020
- Sony FX6 2020
- Sony α7R IV 2019
- Sony α6400 2019
- Sony α6600 2019
- Fujifilm X-A7 2019
- Fujifilm X-Pro3 2019
- Fujifilm X-T30 2019
- Sony α6100 2019
- Sony α7 III 2018
- Fujifilm X-A5 2018
- Fujifilm X-H1 2018
Adapt it to other systems#
Similar lenses#
- 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
- Zeiss Touit 2.8/12 f/2.8
- Viltrox AF 13mm F1.4 f/1.4
- Sony E 11mm f/1.8 f/1.8
- 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 10mm f/2.8 Zero-D FF f/2.8
Frequently asked questions#
Is the Samyang AF 12mm f/2.0 full frame?
Yes — it covers the full 36 × 24 mm frame.
What is the Samyang AF 12mm f/2.0 equivalent to on APS-C?
On a 1.5× APS-C body it frames like 18 mm, and like 19 mm on Canon APS-C.
What is the Samyang AF 12mm f/2.0 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