Ultra-wide prime · Four Thirds

Panasonic Leica DG Summilux 9mm f/1.7 Asph.

The Panasonic Leica DG Summilux 9mm f/1.7 Asph. is a four thirds prime lens (9 mm, f/1.7) for Micro Four Thirds. It belongs to the ultra-wide prime class — ideal for astrophotography, landscapes and dramatic perspectives.

9 mmf/1.7Micro Four Thirds
9 mm
Focal length
f/1.7
Maximum aperture
100°
Diagonal angle of view (Four Thirds)
Four Thirds
Designed for

Specifications#

Model
Leica DG Summilux 9mm f/1.7 Asph.
Lens type
Ultra-wide prime
Focal length
9 mm
Maximum aperture
f/1.7
Image circle
Four Thirds (17.3×13 mm)
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 formatAt 9 mmEquiv. aperture (DoF)
Micro Four Thirds18 mm · 100°f/3.4

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/1.8 on four thirds.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
9 mmf/1.769.2 cm4.13 m∞∞3.18 m0.1%
9 mmf/43.19 m∞∞∞1.36 m0.1%
9 mmf/8∞∞∞∞68.4 cm0.0%

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).

BodyMin. handheld shutter (longest focal)500 rule at 9 mmNPF at 9 mm, f/1.7
Micro Four Thirds1/20 s28 s18 s

Compatible cameras#

Bodies in our database with a native Micro Four Thirds mount.

Adapt it to other systems#

Sony E-mountNikon ZFujifilm X-mountCanon EF-MHasselblad XCDNikon 1 (CX)Pentax Q

Similar lenses#

Frequently asked questions#

Is the Panasonic Leica DG Summilux 9mm f/1.7 Asph. full frame?

No — it is designed for Four Thirds sensors.

What is the Panasonic Leica DG Summilux 9mm f/1.7 Asph. equivalent to on APS-C?

Its focal length is already the real value for Four Thirds: 9 mm frames like 18 mm on full frame.

What is the Panasonic Leica DG Summilux 9mm f/1.7 Asph. good for?

As a ultra-wide prime it suits astrophotography, landscapes and dramatic perspectives.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources