Specifications#
- Brand
- Olympus
- Model
- M.Zuiko Digital 45mm f/1.8
- Lens type
- Portrait / short tele prime
- Focal length
- 45 mm
- Maximum aperture
- f/1.8
- Image circle
- Four Thirds (17.3×13 mm)
- Mount(s)
- Micro Four Thirds
- 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 45 mm | Equiv. aperture (DoF) |
|---|---|---|
| Micro Four Thirds | 90 mm · 27° | f/3.6 |
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: 50 mm f/1.8 on four thirds.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 45 mm | f/1.8 | 2.5 cm | 10.4 cm | 66.4 cm | 2.70 m | 75.0 m | 3.3% |
| 45 mm | f/4 | 5.7 cm | 23.3 cm | 1.50 m | 6.46 m | 33.8 m | 1.5% |
| 45 mm | f/8 | 11.4 cm | 47.0 cm | 3.21 m | 18.1 m | 16.9 m | 0.7% |
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 45 mm | NPF at 45 mm, f/1.8 |
|---|---|---|---|
| Micro Four Thirds | 1/100 s | 6 s | 4 s |
Compatible cameras#
Bodies in our database with a native Micro Four Thirds mount.
- OM System OM-3 2025
- Panasonic Lumix DC-GH7 2024
- OM System OM-1 Mark II 2024
- Panasonic Lumix DC-G9M2 2023
- Panasonic Lumix DC-GH6 2022
- OM System OM-1 2022
- OM System OM-5 2022
- Panasonic Lumix DC-GH5M2 2021
- OM System PEN E-P7 2021
- Olympus OM-D E-M1 Mark III 2020
- Olympus OM-D E-M10 Mark IV 2020
- Olympus OM-D E-M5 Mark III 2019
- Olympus OM-D E-M1X 2019
- Olympus PEN E-PL9 2019
- Panasonic Lumix DC-GH5S 2018
- Panasonic Lumix DC-GX9 2018
- Panasonic Lumix DC-G9 2017
- Panasonic Lumix DC-GH5 2017
- Olympus OM-D E-M10 Mark III 2017
- Panasonic Lumix DC-GX850/GX800 2017
- Olympus OM-D E-M1 Mark II 2016
- Olympus OM-D E-M5 Mark II 2015
- Panasonic Lumix DMC-GX8 2015
- Panasonic Lumix DMC-GH4 2014
- Olympus OM-D E-M1 2013
- Panasonic Lumix DMC-GX7 2013
- Olympus PEN E-P5 2013
- Olympus PEN E-PL5 2012
- Olympus OM-D E-M5 2012
- Olympus PEN E-P3 2011
- Olympus PEN E-PM1 2011
- Olympus E-PL2 2011
- Olympus PEN E-PL1 2010
- Panasonic Lumix DMC-G2 2010
- Olympus PEN E-P1 2009
- Olympus PEN E-P2 2009
- Panasonic Lumix DMC-GF1 2009
- Panasonic Lumix DMC-GH1 2009
- Panasonic Lumix DMC-G1 2008
- Leica Digilux 3 2006
Adapt it to other systems#
Similar lenses#
Frequently asked questions#
Is the Olympus M.Zuiko Digital 45mm f/1.8 full frame?
No — it is designed for Four Thirds sensors.
What is the Olympus M.Zuiko Digital 45mm f/1.8 equivalent to on APS-C?
Its focal length is already the real value for Four Thirds: 45 mm frames like 90 mm on full frame.
What is the Olympus M.Zuiko Digital 45mm f/1.8 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