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LEICA DG VARIO-SUMMILUX 25-50mm / F1.7 ASPH. (H-X2550) Micro Four Thirds Lens

Price (RRP)$ 2,899.00

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H-X2550

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

World’s first* telephoto zoom lens achieving full-range F1.7, for stills and video.
* Among digital interchangeable lenses for mirrorless cameras as of July 8, 2021.
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Features

Designed For Modern Creators

The LEICA DG VARIO-SUMMILUX 25-50mm F1.7 ASPH. lens is designed for photographers, videographers and the modern content creator. Its 50-100mm (35mm camera equiv.) focal range combined with a maximum F1.7 constant aperture is a breakthrough in lens design for the Micro Four Thirds Mount.

Its LEICA DG designation ensures it meets strict quality and image performance standards, delivering edge-to-edge sharpness, uncompromising colour reproduction and beautifully rendered out-of-focus areas.
・ Leica is a registered trademark of Leica Microsystems IR GmbH.
Designed For Modern Creators

Constant F1.7 Aperture

Effortlessly shoot eye-catching portraits and record cinematic video in all lighting conditions with the constant F1.7 maximum aperture throughout the entire 50-100mm zoom range (35mm camera equivalent).

The fast aperture design is complemented by a click-less aperture ring which delivers smooth, seamless iris control, essential for recording video in changing light conditions.
Constant F1.7 Aperture

Superb Close-up Performance

Adding creative versatility to your bag is easy thanks to the 28cm minimum focusing distance of this lens. (31cm at the telephoto end). With a 0.42x maximum magnification (35mm equiv. at the telephoto end) it is ideal for shooting food, flowers, insects and capturing subtle textures and intricate details.
Superb Close-up Performance

Dust, Splash & Freeze-Resistant Design

The LEICA DG VARIO-SUMMILUX 25-50mm F1.7 lens ensures you never miss a moment. Designed for the toughest conditions, its dust and splash-resistant construction allows you to continue shooting, even when the weather takes a turn.
・ Dust and Splash Resistant does not guarantee that damage will not occur if this lens is subjected to direct contact with dust and water.
Dust, Splash & Freeze-Resistant Design

Ideal For Cinematic Video

The lens offers fast, accurate autofocus and smooth aperture changes, critical for the modern content creator, allowing you to record cinematic 4K video and high-resolution stills with maximum image sharpness.
Ideal For Cinematic Video

H-X2550 Lens Construction

The construction of the LEICA 25-50mm F1.7 lens features 16 elements in 11 groups, including 1 ASPH, 3 ED and 1 UHR lenses to minimize distortion and aberrations and ensuring true-to-life colour and maximum image resolution.
H-X2550 Lens Construction

H-X2550 MTF Chart

The H-X2550 lens meets the strict optical standards set by Leica Camera AG, offering outstanding sharpness and resolution throughout the entire focal range for uncompromising creative potential.
・ For lenses that are capable of compensating distortion, the horizontal axis shows the distance from the centre of the corrected image.
H-X2550 MTF Chart

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Specs

Photo of LEICA DG VARIO-SUMMILUX 25-50mm / F1.7 ASPH. (H-X2550) Micro Four Thirds Lens

Size and Weight

Height
87.6mm
Width
87.6mm
Depth
127.6mm
Weight
654g

Approximately. Weight excluding lens cap, lens rear cap and lens hood. Length from the tip of the lens to the base side of the lens mount.

  • Micro Four Thirds System StandardMicro Four Thirds System Standard
  • LEICA DG LensLEICA DG Lens
  • Dust / Splash / Freeze ResistantDust / Splash / Freeze Resistant

Versatile 50-100mm (35mm Equiv.) Focal Range with Constant F1.7 Aperture and Click-Less Aperture Ring.

Excellent Macro-Style Capabilities with a Minimum Focusing Distance of 28cm (Wide) / 31cm (Tele) and a Maximum Magnification of 0.42x (35mm Equiv. at Tele End)

LEICA DG-VARIO SUMMILUX Designation Ensures the Lens Delivers Uncompromising Optical Performance and Exceptional Weather-Sealed Build Quality.

General

  • 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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