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Panasonic Leica DG Summilux 9mm f/1.7 ASPH Lens

BH #PA917M • MFR #H-X09
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Panasonic Leica DG Summilux 9mm f/1.7 ASPH Lens
Key Features
  • Micro Four Thirds System
  • 18mm (35mm Equivalent)
  • Aperture Range: f/1.7 to f/16
  • Minimum Focusing Distance: 3.7"
Designed for Micro Four Thirds mirrorless cameras, the Panasonic Leica DG Summilux 9mm f/1.7 ASPH. Lens is a close-focusing wide-angle prime ideally suited for landscapes, cityscapes, and close-up scenes. Featuring a unique half-macro design, this lens offers a minimum focusing distance of just 3.7", making it an excellent choice for photographing and filming everything from close-ups of plants and small details to street scenes and vistas. Optimized for video as well as stills, the lens provides smooth and near silent autofocus performance to complement movie recording applications, and the lens is also compatible with micro-step aperture control, which enables smooth exposure changes while recording video.
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Panasonic Leica DG Summilux 9mm f/1.7 Overview

Close-Focusing Wide-Angle Prime
Designed for Micro Four Thirds mirrorless cameras, the Panasonic Leica DG Summilux 9mm f/1.7 ASPH. Lens is a close-focusing wide-angle prime ideally suited for landscapes, cityscapes, and close-up scenes. Featuring a unique half-macro design, this lens offers a minimum focusing distance of just 3.7", making it an excellent choice for photographing and filming everything from close-ups of plants and small details to street scenes and vistas. Optimized for video as well as stills, the lens provides smooth and near silent autofocus performance to complement movie recording applications, and the lens is also compatible with micro-step aperture control, which enables smooth exposure changes while recording video.

Sophisticated Optical Design
  • Boasting an outstanding optical design, this lens is comprised of twelve elements in nine groups, which include two aspherical elements to maintain a compact form factor and reduce spherical aberrations and distortions.
  • Two extra-low dispersion elements and one ultra-high refractive index element work to minimize color fringing and chromatic aberrations for increased color fidelity, edge-to-edge sharpness, and high resolving performance.
Versatile Focusing Performance
  • Smooth and near silent autofocus performance complements movie recording applications while the quick operation is beneficial to still photographers.
  • Excellent video performance with a mechanical design that suppresses focus breathing. Also compatible with micro-step aperture control, which enables smooth exposure changes while recording video.
All-Purpose Functionality
  • Lightweight and rugged wide-angle prime specifically designed for Micro Four Thirds mirrorless digital cameras, where it provides a 35mm-equivalent focal length of 18mm.
  • Bright f/1.7 maximum aperture well-suited to working in difficult and low lighting conditions, also affords greater control over depth of field for selective focus techniques.
  • Half-macro design benefits working with close-up subjects and provides a minimum focusing distance of just 3.7".
  • A rounded seven-blade diaphragm contributes to a pleasing bokeh quality when making shallow depth of field imagery.
  • Dust, splash, and freeze-resistant design protects the lens during heavy field use and harsh conditions.
UPC: 885170392656

Panasonic Leica DG Summilux 9mm f/1.7 Specs

General
Focal Length
9mm (35mm Equivalent: 18mm)
Aperture
Maximum: f/1.7
Minimum: f/16
Lens Mount
Micro Four Thirds
Lens Format Coverage
Micro Four Thirds
Angle of View
100°
Minimum Focus Distance
3.7" / 9.5 cm
Magnification
1:4 Macro Reproduction Ratio
0.25x Magnification
Optical Design
12 Elements in 9 Groups
Aperture/Iris Blades
7, Rounded
Focus Type
Autofocus
Image Stabilization
No
Filter Size
55 mm (Front)
Dimensions
ø: 2.4 x L: 2" / ø: 60.8 x L: 52 mm
Weight
4.6 oz / 130 g
Packaging Info
Package Weight
0.46 lb
Box Dimensions (LxWxH)
4.4 x 3.3 x 3.1"

Panasonic Leica DG Summilux 9mm f/1.7 Reviews

Excellent Little Lens

By Mark
Rated 5 out of 5
Date: 2026-04-01

I recently bought the OM-5 Mark II w/ M.Zuiko 12-40 f2.8 as my primary travel kit. I wanted a wider/faster prime for interior and/or low light work. The Panasonic Leica DG Summilux 9mm f/1.7 is an excellent lens and really fits my needs. It is very light and small. I made some test shots and was impressed with its sharpness and clarity all the way out to the corners.

A fantastic wide prime

By Luis
Rated 5 out of 5
Date: 2025-09-09

Very sharp, small, great autofocus, not too expensive, and the results are fantastic. The perfect wide prime.

See any errors on this page?

Does this lens hotspot in 720nm IR?

Does this lens hotspot in 720nm IR?
Asked by: Thomas
Yes this lens has IR flare if the camera is pointed at our mother star. Moving the camera may help.
Answered by: Don
Date published: 2025-01-31

Have you test this lens underwater? Using a ...

Have you test this lens underwater? Using a camera housing of course
Asked by: Hernan
Hello! This lens is splash resistant and dust resistant and these terms are used to describe an extra level of protection this unit offers against exposure to a minimal amount of moisture, water or dust. Be informed that these terms do not guarantee that damage will not occur if this lens is subjected to direct contact with water or dust infiltration. Also, when attaching or removing the lens, be careful so that foreign objects such as sand, dust, and water droplets do not adhere to or enter the lens mount rubber, contact points, digital camera and lens. -C
Answered by: Panasonic Team
Date published: 2023-01-13

Will Olympus' automated Starry Sky AF work with ...

Will Olympus' automated Starry Sky AF work with this lens?
Asked by: John
Olympus Starry Sky AF feature will work with this Panasonic Leica DG Summilux 9mm f/1.7 ASPH. Lens BH #PA917M.
Answered by: Samik G
Date published: 2024-03-28

Is the lens body made of metal, like the lens ...

Is the lens body made of metal, like the lens mount?
Asked by: carl
Hi Carl! The Panasonic lens has a metal mount, not a plastic one. The lens barrel, focusing ring, and non-rotating 55mm filter threads are made of composite plastic.-G
Answered by: Panasonic Team
Date published: 2024-08-26

Is this lens considered to be a flat field lens?

Is this lens considered to be a flat field lens?
Asked by: Corrie
Hello! No, the lens is not flat field. -C
Answered by: Panasonic Team
Date published: 2023-03-02

ya astro foto Hi, I have an Olympus OM-D EM 1 ...

ya astro foto Hi, I have an Olympus OM-D EM 1 Mark II. In the lens, how to set the focus to infinity?
Asked by: Olga
Hi! Please check with the manufacturer of your camera.
Answered by: Panasonic Team
Date published: 2023-03-23

When used with an Olympus em5mkIII will it still ...

When used with an Olympus em5mkIII will it still be dust, splash, and freeze-resistant as per the specs?
Asked by: Lyndsay
Hi Lyndsay! When using the lens with Olympus E-M5 III splash proof and dust proof is not guaranteed. -G
Answered by: Panasonic Team
Date published: 2026-07-28

Very interesting lens! Can you describes its ...

Very interesting lens! Can you describes its suitability for wide-angle night-sky photography, e.g., coma distortion, vignetting, etc?
Asked by: Mark
Clearly, the specs show a maximum aperture of 1.7mm.
Answered by: Anonymous
Date published: 2024-08-26
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