Cameras Ranked

9 Panasonic LEICA DG SUMMILUX 9mm F1.7

The Panasonic LEICA DG SUMMILUX 9mm F1.7 is a prime lens for Micro Four Thirds (Micro Four Thirds) that covers 9 mm at f/1.7, weighs 130 g and focuses as close as 0.095 m. Next to 2 other Micro Four Thirds prime lenses in its focal range, it suits you if you carry it all day or travel light, or you shoot in low light or want a blurrier background.

  • f/1.7widest aperture
  • 130 gweight
  • 83bodies it fits
To one scale. Panasonic LEICA DG SUMMILUX 9mm F1.7: length 52 mm, diameter 60.8 mm, filter thread 55 mm.52 mmø60.8
To scale from the maker's length and diameter, the mount on the left and the filter thread in yellow at the front. The rings are drawn, not measured.

Compare it with another lensAll Micro Four Thirds lenses

To one scale. Panasonic LEICA DG SUMMILUX 9mm F1.7: length 52 mm, diameter 60.8 mm, filter thread 55 mm.52 mmø60.8
To scale from the maker's length and diameter, the mount on the left and the filter thread in yellow at the front. The rings are drawn, not measured.

Bodies it fits

83 bodies

All cameras, by maker and mount

Specifications

Focal length
9 mm1
Widest aperture
f/1.71
Closest focus
0.095 m1
Maximum magnification
0.25x1
Stabilization
No1
Mount
Micro Four Thirds1
Covers
Micro Four Thirds
Type
Prime
Weight
130 g1
Length
52 mm1
Diameter
60.8 mm1
Filter thread
55 mm1
Elements
121
Groups
91
Aperture blades
71
Weather sealed
Yes1

Sources

  1. Panasonic product specifications, checked Oct 6, 2026

Worked out by code, not stated by a source

  • Read from the lens name: each maker marks the sensor size a lens covers (Sony FE/E, Canon RF/RF-S, Nikon DX, Tamron Di III/Di III-A, Sigma DG/DC); every Fujifilm X lens is APS-C and every Micro Four Thirds lens is Four Thirds.
  • Prime or zoom, read from the focal length in the lens name.

Each value is checked automatically against the source it links, on the date shown. How we build these pages

† The makers' own tables, row by row, with labels in our plain words (translated where the maker's page isn't in English); each row's numbers are checked against the page it links.

Full specifications†

Show all 17 rows
Full specificationsPanasonic LEICA DG SUMMILUX 9mm F1.71
Lens mount typeMicro Four Thirds Mount
Focal length9 mm
35mm equivalent focal length18 mm (35 mm film camera equivalent)
Number of diaphragm blades7
Maximum apertureF1.7
Minimum apertureF16
Angle of view100°
Minimum focusing distance0.095 m (0.31 feet) (from the focus distance reference line)
Maximum magnification ratio0.25×
35mm equivalent magnification0.50× (35 mm film camera equivalent)
Optical image stabilizerNo
Filter diameter55 mm
Maximum diameterØ60.8 mm (2.4′′)
WeightApprox. 130 g (0.29 lb)
Dust and splash resistanceYes
Operating temperature range−10 °C to 40 °C (14 °F to 104 °F) (Recommended)
Permissible relative humidity10 %RH to 80 %RH

How the pick works

  1. Widest aperture3

    Lower wins once they are 0.3 apart.

  2. Weight2

    Lower wins from a 12% gap.

  3. Focal length (longest)2

    Higher wins from a 15% gap.

  4. Focal length (widest)2

    Lower wins once they are 2 mm apart.

  5. Optical stabilization1

    Having it wins.

  6. Closest focus, wide end1

    Lower wins from a 15% gap. Compared only between lenses of the same focal length (widest).

  7. Filter thread0.5

    Lower wins once they are 5 mm apart.

  8. Lead for a pick1

Our pick or our take adds up the importance of each real difference, with these importances and thresholds: a gap smaller than its row's threshold is too close to call and counts as the same. They are our editorial choice, not a measurement, the same on every page, and they never read prices, sales or who sells it.

Paid placements0

How we rank, in full