Panasonic Leica DG Summilux 9mm f/1.7 ASPH : Specifications and Opinions

Panasonic Leica DG Summilux 9mm f/1.7 ASPH, front

Panasonic Leica DG Summilux 9mm f/1.7 ASPH, back

Panasonic Leica DG Summilux 9mm f/1.7 ASPH, top

The Panasonic Leica DG Summilux 9mm f/1.7 ASPH is a wide-angle lens for 4/3, manufactured from 2022. The focus is done by Stepper Motor, it does not have image stabilization. The average price, when it has been added to the JuzaPhoto database, is 479 €;

21 users have given it an average vote of 9.6 out of 10.

MOUNT

This lens is available with the following mounts:

Micro 4/3: this lens is compatible with mirrorless micro-4/3.

Specifications
Focal lenght	9 mm
Angle of view	100.4° (equivalent to a 18mm in Fullframe 24x36mm format)
Format	4/3
Max. aperture	f/1.7
Aperture blades	7
Lenses/Groups	12 elements in 9 groups
Min. focus distance	0.09 meters
Reproduction ratio	0.25x
Features
Stabilization	No
Focus	Stepper Motor
Internal Focus	Yes
Built and notes
Tripod ring	No
Extenders	No
Filters	55 mm
Lens hood	Yes, supplied
Weather sealing	Yes
Weight	130 g
Dimensions	61 x 52 mm
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Reviews

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The following opinions have been automatically translated with Google Translate.

Marcello del Vecchio

sent on 30 Gennaio 2026

Pros: Lightness and considerable angle of view (provided you know how to handle it with skill)

Cons: Flare and ghost galore

Opinion: I took it out of desire to add a wide lens to my lens park of an OM1markii and experiment with a wide angle of view that is unusual for me. I took him on various panoramic excursions (lake, mountain, sea, architecture of interior churches, above all). So I write after intensive use in the field in various situations during the day and in the evening. There are certainly merits such as lightness while being plasticky to the touch, the typical brightness of the optics, the 1.7 aperture is excellent especially for indoors. Very responsive and performing autofocus on my camera, the price is certainly another advantage for such bright optics. However..... guys... but.... Resign yourself to losing a lot of shots. This lens returns flare galore on every occasion and circumstance, often you have to give up the subject because there is a way to shoot it without flare and ghost. It becomes a lottery and often like raffles you only get lost. In the end I rejected it and got rid of it. And honestly, don't tell me that it's normal for such a wide lens because it's not true at all to such an exaggerated extent. In love with the width I even went down as a focal length by switching to a zuiko 7/14 pro and honestly it is another category of lens that is now used and taken home at very low costs. With the 7/14 flare and ghost very little and the inevitable minimum, I never missed a single photo output. In the end I personally do not recommend this panasonic.

JakSpoon

sent on 03 Ottobre 2025

Pros: Quality and portability at the TOP - Excellent sharpness even at TA - Really negligible weight and size - Very good value for money (for the type of lens) - Plastic construction but quality (it is also a CON)

Cons: Distortion (if not corrected) present - Plastic construction but quality (it's also a PRO)

Opinion: A truly "Must Have" lens for those who are in the Micro 4/3 system, and this for a simple reason: with a negligible weight of 130 grams and tiny dimensions, you can always carry around a very bright wide-angle lens (18mm equivalent) (f1.7) and with a level optical quality: already at full aperture it does great, and just close it to f2.8 to get exceptional results! I confirm that the distortion is there but now it is a lens recognized and supported by all or almost all photo editing software, so it is a "non" problem, since it still performs very well even at the corners considering that it is a very wide-angle lens (yes maybe there is also a minimum of chromatic aberration but even that with serious software such as DxO PureRAW or PhotoLab is never noticeable in the final result)! Really super-recommended, especially like me if you take it on offer at 433 euros or already there on Amazon with the 5 zero interest installments (even if I had it "free" but that's another story) :fgreen:

Actdrum

sent on 27 Novembre 2024

Pros: All

Cons: Nothing

Opinion: An 18mm equivalent F1.7 in the weight of a few peanuts and the bulk of a tissue pack, with precise and fast MAF. Sharp enough and with a very interesting minimum distance to get very close shots. In short, for the price at which it is proposed, I would say that it cannot and should not be missing in an m4/3 kit. Basically you think you don't want to carry it around and then you end up that given its size, you always find a hole in your backpack. For those who talk about "cons" regarding the construction, honestly I don't agree, it's true it's plastic, but you can perceive that it's a high-level plastic, moreover it's precisely this that gives it its typical lightness which is the real strong point. Regarding chromatic aberrations, I personally find them well manageable in PP, at least with DXO Photolab. The lens hood is a bit difficult to attach and unhook but even it in my opinion despite being plastic is solid. The distortion and vignetting are clearly present but totally managed properly by the DXO correction profiles, I don't know with other software.

Pierino64

sent on 01 Settembre 2024

Pros: Weight, compactness, sharpness, minimum focusing distance, very resistant to chromatic aberrations, minimal distortions for the focal length

Cons: None, maybe plastic construction

Opinion: A wonderful surprise, this Panaleica is really fun, very close focus that allows very particular shots, excellent sharpness already at full aperture. There are no particular aberrations and the distortion is also corrected really well. Despite the rather "wide" focal length, it lends itself to many uses. The construction is made of plastic, which could make the nose curl a little, it has the advantage of a remarkable lightness. Attached to the G9II, which is a camera of considerable size, it disappears, it seems to have no lens attached. Fast and precise focusing, in short, a complete lens in every respect, worthy of being in any kit, especially if you want a wide angle with remarkable performance.

Giuseppe Dipalma

sent on 01 Settembre 2024

Pros: Weight, compactness, reproduction ratio, resolution at short distances (even at the edges)

Cons: Chromatic aberrations, build quality, infinity resolution, noisy autofocus, very high highlights

Opinion: Lens purchased as a rectilinear alternative to the Olympus M.Zuiko Digital ED 8mm f/1.8 Fisheye Pro (lens of a completely different caliber) for ambient macro photography. This lens is ideal for short-medium distances, a context in which it gives its best showing excellent resolution over the entire frame even at closed apertures. At infinity, however, I noticed that it loses fine detail and in high-contrast areas aberration is very present. The distortion is corrected in the camera quite effectively. The out-of-focus areas are not particularly pleasant but have a very characteristic look. Coupled with an OM-1, the exposure of the lights is slightly high. Given the negligible weight, the build quality does not cry out for a miracle, it does not return particular solidity in the hand. The lens hood is a toy. I wouldn't buy this lens for landscape but for closeup/mid-distance photography, where it performs best.

There are 7 more reviews. Show all »

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Panasonic Leica DG Summilux 9mm f/1.7 ASPH : Specifications and Opinions

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Photos taken with Panasonic Leica DG Summilux 9mm f/1.7 ASPH