Specifications#
- Brand
- Samyang
- Model
- 135mm f/2 ED UMC
- Lens type
- Portrait / short tele prime
- Focal length
- 135 mm
- Maximum aperture
- f/2
- Image circle
- Full frame (36×24 mm)
- Mount(s)
- Nikon F, Canon EF, Pentax K, Micro Four Thirds, Sony / Minolta A-mount, Sony E-mount, Fujifilm X-mount, Samsung NX
- 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 135 mm | Equiv. aperture (DoF) |
|---|---|---|
| Full frame | 135 mm · 18° | f/2.0 |
| APS-C | 202 mm · 12° | f/3.0 |
| APS-C (Canon) | 216 mm · 11° | f/3.2 |
| Micro Four Thirds | 270 mm · 9° | 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: 135 mm f/2 on full frame.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 135 mm | f/2 | 0.6 cm | 2.5 cm | 16.0 cm | 65.0 cm | 304 m | 13.6% |
| 135 mm | f/4 | 1.1 cm | 4.9 cm | 32.1 cm | 1.30 m | 152 m | 6.8% |
| 135 mm | f/8 | 2.3 cm | 9.8 cm | 64.3 cm | 2.64 m | 76.1 m | 3.4% |
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 135 mm | NPF at 135 mm, f/2 |
|---|---|---|---|
| Full frame | 1/125 s | 4 s | 2 s |
| APS-C | 1/200 s | 2 s | 1 s |
| APS-C (Canon) | 1/200 s | 2 s | 1 s |
| Micro Four Thirds | 1/250 s | 2 s | 1 s |
Compatible cameras#
Bodies in our database with a native Nikon F, Canon EF, Pentax K, Micro Four Thirds, Sony / Minolta A-mount, Sony E-mount, Fujifilm X-mount and Samsung NX mount.
- Sony α7R VI 2026
- Fujifilm X-E5 2025
- OM System OM-3 2025
- Sony α7 V 2025
- Fujifilm X-T30 III 2025
- Sony ZV-E10 II 2024
- Sony α1 II 2024
- Sony α9 III 2024
- Panasonic Lumix DC-GH7 2024
- Fujifilm X-M5 2024
- OM System OM-1 Mark II 2024
- Fujifilm X-T50 2024
- Sony α6700 2023
- Fujifilm X-S20 2023
- Sony ZV-E1 2023
- Sony α7C II 2023
- Sony α7CR 2023
- Panasonic Lumix DC-G9M2 2023
- Panasonic Lumix DC-GH6 2022
- Sony α7R V 2022
- OM System OM-1 2022
- OM System OM-5 2022
- Sony FX30 2022
- Fujifilm X-H2S 2022
- Fujifilm X-T5 2022
- Ricoh Pentax KF 2022
- Fujifilm X-H2 2022
- Ricoh Pentax K-3 Mark III 2021
- Panasonic Lumix DC-GH5M2 2021
- Sony FX3 2021
- Sony ZV-E10 2021
- Sony α1 2021
- OM System PEN E-P7 2021
- Sony α7 IV 2021
- Fujifilm X-E4 2021
- Fujifilm X-T30 II 2021
- Sony α7S III 2020
- Nikon D6 2020
- Nikon D780 2020
- Olympus OM-D E-M1 Mark III 2020
Adapt it to other systems#
Similar lenses#
- Canon EF 135mm f/2 L USM f/2
- Canon EF 135mm f/2.8 Soft Focus f/2.8
- Nikon Nikkor AI-S 135mm f/2 f/2
- Nikon Nikkor AI-S 135mm f/2.8 f/2.8
- Nikon Nikkor AI-S 135mm f/3.5 f/3.5
- Pentax Takumar 135mm f/2.5 Bayonet f/2.5
- Pentax smc Pentax-M 135mm f/3.5 f/3.5
- Sony Carl Zeiss Sonnar T* 135mm F1.8 ZA (SAL135F18Z) f/1.8
- Sigma 105 mm F1.4 DG HSM Art f/1.4
- Nikon Nikkor AF-S 105mm f/1.4E ED f/1.4
- Nikon Nikkor AI-S 105mm f/2.5 f/2.5
- Fujifilm XF 90mm f/2 R LM WR f/2
Frequently asked questions#
Is the Samyang 135mm f/2 ED UMC full frame?
Yes — it covers the full 36 × 24 mm frame.
What is the Samyang 135mm f/2 ED UMC equivalent to on APS-C?
On a 1.5× APS-C body it frames like 202 mm, and like 216 mm on Canon APS-C.
What is the Samyang 135mm f/2 ED UMC good for?
As a portrait / short tele prime it suits head-and-shoulders portraits with flattering perspective and creamy backgrounds.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources