Panasonic 25-50mm LEICA DG VARIO-SUMMILUX / F1.7 ASPH.


World’s first telephoto zoom lens achieving full-range F1.7, for stills and video.

LEICA DG Lens – ultimate optics
Opt for a LEICA DG lens and get the ultimate in optical quality and performance. They naturally meet the strict quality standards set by Leica Camera AG. Thanks to the sophisticated design of these lenses, you will enjoy brilliant clarity all the way to the edges of your photos. At the same time, distortions of all kind are prevented to enable precise, sharp picture rendering. This means you have the ideal tool for pro-level images in the palm of your hand.

All round F1.7 quality
This lens is great for everything from snapshots indoors in low light to portraits with a distinctive bokeh effect in the background. Enjoy the quality of F1.7 throughout the 50-100mm zoom range (35mm camera equivalent) along with ease-of-use delivered by a compact, lightweight design. Seamless iris control allows users to shoot video with exceptionally smooth changes in exposure when zooming or panning. And when used with a compatible camera, the rotation angle of the focus ring can be adjusted manually.

Superb close-up performance
This lens features superb close-up performance, featuring a closest focusing distance of 0.31m (at the telephoto end)* and 0.42x maximum magnification (35mm camera equivalent at the telephoto end). It’s ideal for zooming in on cuisine and other small items as well as small and sensitive subjects such as butterflies. It’s a lens designed to expand the range of creativity.

Dust, splash and freeze-resistant design
LEICA DG VARIO-SUMMILUX 25-50mm / F1.7 ASPH. is designed to keep shooting in the toughest conditions thanks to its dust- and splash-resistant construction and allows you to shoot in temperatures as low as -10 °C.

Ideal for video recording
The lens offers fast, accurate autofocus and smooth aperture changes, critical for the modern content creator, allowing you to record beautiful 4K video and stills without disturbing your subject.

H-X2550 lens construction
The optimized configuration has 16 elements in 11 groups, including 1 ASPH, 3 ED and 1 UHR lenses to minimize aberrations and ensure superb resolution.



Panasonic 25-50mm LEICA DG VARIO-SUMMILUX / F1.7 ASPH.
Panasonic 25-50mm LEICA DG VARIO-SUMMILUX / F1.7 ASPH.

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  • Lens Name

    • LEICA DG VARIO-SUMMILUX 25-50mm / F1.7 ASPH.
  • Lens Construction

    • 16 elements in 11 groups (1 aspherical lens, 3 ED lenses, 1 UHR lens)
  • Mount

    • Micro Four Thirds mount
  • Focal Length

    • f=25-50mm (35mm camera equivalent 50-100mm)
  • Aperture Type

    • 9 diaphragm blades / Circular aperture diaphragm
  • Maximum Aperture

    • F1.7
  • Minimum Aperture

    • F16
  • Closest Focusing Distance

    • 0.28m/0.92ft (at focal length 25mm) / 0.31m/1.02ft (at focal length 50mm)
  • Maximum Magnification

    • 0.21x / 0.42x (35mm camera equivalent) (at focal length 50mm)
  • Diagonal Angle of View

    • 47°(Wide) - 24°(Tele)
  • Dust and Splash Resistant

    • Yes*
      *Dust and Splash Resistant does not guarantee that damage will not occur if this lens is subjected to direct contact with dust and water.
  • Recommended Operating Temperature

    • -10℃ to 40℃ (14℉ to 104℉)
  • Filter Size

    • φ77mm
  • Max. Diameter

    • φ87.6mm / 3.45inch
  • Overall Length

    • Approx. 127.6mm / 5.02inch (from the tip of the lens to the base side of the lens mount)
  • Weight

    • Approx. 654g / 1.44lb (excluding lens cap, lens rear cap and lens hood)
  • Standard Accessories

    • Lens cap, Lens rear cap, Lens hood, Lens storage bag


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