Specifications#
- Brand
- Tokina
- Model
- RMC Tokina 28mm f/2.8
- Lens type
- Standard prime
- Focal length
- 28 mm
- Maximum aperture
- f/2.8
- Image circle
- Four Thirds (17.3×13 mm)
- Mount(s)
- Four Thirds, M42 screw 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 28 mm | Equiv. aperture (DoF) |
|---|---|---|
| Micro Four Thirds | 56 mm · 42° | f/5.6 |
Depth of field & background blur#
Computed on its native Four Thirds format (CoC 15 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: 28 mm f/2.8 on four thirds.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 28 mm | f/2.8 | 10.4 cm | 42.7 cm | 2.87 m | 15.0 m | 18.7 m | 0.8% |
| 28 mm | f/4 | 15.0 cm | 61.8 cm | 4.45 m | 36.6 m | 13.1 m | 0.6% |
| 28 mm | f/8 | 30.4 cm | 1.33 m | 18.1 m | ∞ | 6.56 m | 0.3% |
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 28 mm | NPF at 28 mm, f/2.8 |
|---|---|---|---|
| Micro Four Thirds | 1/60 s | 9 s | 7 s |
Compatible cameras#
Bodies in our database with a native Four Thirds and M42 screw mount mount.
- Olympus E-5 2010
- Olympus E-620 2009
- Olympus E-30 2008
- Olympus E-420 2008
- Olympus E-520 2008
- Olympus E-410 2007
- Panasonic Lumix DMC-L10 2007
- Olympus E-3 2007
- Olympus E-330 2006
- Olympus E-400 2006
- Panasonic Lumix DMC-L1 2006
- Olympus E-500 2005
- Olympus E-300 2005
- Olympus E-1 2003
- Pentax Spotmatic 1964
- Olympus E-450
- Olympus E-510
- Petri TTL
- Zenit 122
- Zenit 412LS
Adapt it to other systems#
Similar lenses#
- Sigma 30mm f/1.4 EX DC HSM f/1.4
- Olympus Zuiko Digital 25mm f/2.8 f/2.8
- Zeiss Carl Zeiss Jena Flektogon 35mm f/2.4 f/2.4
- Pentax SMC Takumar 50mm f/1.4 f/1.4
- Pentax Super-Takumar 50mm f/1.4 f/1.4
- Sigma 50mm f/1.4 EX DG HSM f/1.4
- Voigtländer Color-Ultron 50mm f/1.8 f/1.8
- Zeiss Carl Zeiss Jena Pancolar 50mm f/1.8 f/1.8
- Zeiss Carl Zeiss Jena Tessar 50mm f/2.8 f/2.8
- Pentax Super-Takumar 55mm f/1.8 f/1.8
- Zeiss Carl Zeiss Jena 1Q Biotar 1:2 f=58mm T f/2
- Zeiss Carl Zeiss Jena Biotar 58mm f/2 f/2
Frequently asked questions#
Is the Tokina RMC Tokina 28mm f/2.8 full frame?
No — it is designed for Four Thirds sensors.
What is the Tokina RMC Tokina 28mm f/2.8 equivalent to on APS-C?
Its focal length is already the real value for Four Thirds: 28 mm frames like 56 mm on full frame.
What is the Tokina RMC Tokina 28mm f/2.8 good for?
As a standard prime it suits street, documentary, everyday and low-light shooting.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources