Specifications#
- Brand
- Zeiss
- Model
- Carl Zeiss Sonnar T* 180mm f/2.8 MMJ
- Lens type
- Telephoto prime
- Focal length
- 180 mm
- Maximum aperture
- f/2.8
- Image circle
- Full frame (36×24 mm)
- Mount(s)
- Contax/Yashica (C/Y)
- 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 180 mm | Equiv. aperture (DoF) |
|---|---|---|
| Full frame | 180 mm · 14° | f/2.8 |
| APS-C | 270 mm · 9° | f/4.2 |
| APS-C (Canon) | 288 mm · 9° | f/4.5 |
| Micro Four Thirds | 360 mm · 7° | f/5.6 |
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: 200 mm f/2.8 on full frame.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 180 mm | f/2.8 | 0.4 cm | 1.9 cm | 12.5 cm | 51.0 cm | 386 m | 17.7% |
| 180 mm | f/4 | 0.6 cm | 2.7 cm | 17.9 cm | 72.8 cm | 270 m | 12.4% |
| 180 mm | f/8 | 1.2 cm | 5.4 cm | 35.7 cm | 1.46 m | 135 m | 6.2% |
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 180 mm | NPF at 180 mm, f/2.8 |
|---|---|---|---|
| Full frame | 1/200 s | 3 s | 2 s |
| APS-C | 1/250 s | 2 s | 1 s |
| APS-C (Canon) | 1/320 s | 2 s | 1 s |
| Micro Four Thirds | 1/400 s | 1 s | 1 s |
Compatible cameras#
Bodies in our database with a native Contax/Yashica (C/Y) mount.
Adapt it to other systems#
Frequently asked questions#
Is the Zeiss Carl Zeiss Sonnar T* 180mm f/2.8 MMJ full frame?
Yes — it covers the full 36 × 24 mm frame.
What is the Zeiss Carl Zeiss Sonnar T* 180mm f/2.8 MMJ equivalent to on APS-C?
On a 1.5× APS-C body it frames like 270 mm, and like 288 mm on Canon APS-C.
What is the Zeiss Carl Zeiss Sonnar T* 180mm f/2.8 MMJ good for?
As a telephoto prime it suits sports, wildlife and stage photography.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources