Specifications#
- Brand
- Olympus
- Model
- M.Zuiko Digital ED 8-25mm f/4.0 PRO
- Lens type
- Standard zoom
- Focal length
- 8–25 mm
- Maximum aperture
- f/4
- 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 8 mm | At 14 mm | At 25 mm | Equiv. aperture (DoF) |
|---|---|---|---|---|
| Micro Four Thirds | 16 mm · 107° | 28 mm · 75° | 50 mm · 47° | f/8.0 |
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: 14 mm f/4 on four thirds.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 8 mm | f/4 | 13.8 m | ∞ | ∞ | ∞ | 1.07 m | 0.0% |
| 8 mm | f/8 | ∞ | ∞ | ∞ | ∞ | 54.1 cm | 0.0% |
| 14 mm | f/4 | 66.4 cm | 3.86 m | ∞ | ∞ | 3.28 m | 0.1% |
| 14 mm | f/8 | 1.90 m | ∞ | ∞ | ∞ | 1.65 m | 0.1% |
| 25 mm | f/4 | 18.9 cm | 78.7 cm | 6.19 m | 232 m | 10.4 m | 0.5% |
| 25 mm | f/8 | 38.8 cm | 1.77 m | 110 m | ∞ | 5.23 m | 0.2% |
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 8 mm | NPF at 8 mm, f/4 |
|---|---|---|---|
| Micro Four Thirds | 1/50 s | 31 s | 30 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#
- Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 Asph. f/1.7
- OM System 12-45mm F4.0 f/4
- Olympus M.Zuiko Digital ED 12-40mm f/2.8 Pro f/2.8
- Olympus M.Zuiko Digital ED 12-45mm f/4.0 Pro f/4
- Olympus M.Zuiko Digital ED 12-50mm f/3.5-6.3 EZ f/3.5–6.3
- Panasonic G Vario 12-32mm f/3.5-5.6 Asph. Mega OIS f/3.5–5.6
- Panasonic G Vario 12-60mm f/3.5-5.6 Asph. Power OIS f/3.5–5.6
- Panasonic G X Vario 12-35mm f/2.8 Asph. Power OIS f/2.8
- Panasonic G X Vario 12-35mm f/2.8 II Asph. Power OIS f/2.8
- Panasonic Leica DG Vario-Elmarit 12-60mm f/2.8-4.0 Asph. Power OIS f/2.8–4
- Olympus M.Zuiko Digital 14-42mm f/3.5-5.6 II f/3.5–5.6
- Olympus M.Zuiko Digital ED 14-42mm f/3.5-5.6 f/3.5–5.6
Frequently asked questions#
Is the Olympus M.Zuiko Digital ED 8-25mm f/4.0 PRO full frame?
No — it is designed for Four Thirds sensors.
What is the Olympus M.Zuiko Digital ED 8-25mm f/4.0 PRO equivalent to on APS-C?
Its focal length is already the real value for Four Thirds: 8–25 mm frames like 16–50 mm on full frame.
What is the Olympus M.Zuiko Digital ED 8-25mm f/4.0 PRO good for?
As a standard zoom it suits everyday shooting, travel, events and walkaround use.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources