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Product Summary:

The LEICA DG VARIO-SUMMILUX 10-25mm F1.7 ASPH. H-X1025 is a premium Micro Four Thirds standard zoom lens meeting Leica’s exacting standards. It provides a highly versatile wide-angle to standard focal length range equivalent to 20mm to 50mm in 35mm format, making it an excellent lens for travel, landscapes, and documentary work in Japan.

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Uniquely, this lens maintains an incredibly fast, constant maximum aperture of F1.7 across the entire zoom range. This combination of zoom versatility and prime lens speed makes it a revolutionary optic, providing exceptional low-light performance and beautiful depth-of-field control, all while offering intuitive, professional operation via an equipped aperture ring.

Quick Highlights:

  • Extremely fast, constant maximum aperture of F1.7 throughout the zoom.
  • Highly versatile zoom range equivalent to 20mm to 50mm.
  • Meets strict LEICA DG image quality standards.
  • Equipped with an intuitive, dedicated aperture ring.
  • Suitable for low-light photography, video, and shallow depth-of-field effects.
  • Durable metal mount and professional construction.

Product Details / Description:

This lens is often considered a set of fast primes built into a single zoom, making it a powerful tool for capturing dynamic scenes in Japan, from the wide-open spaces of nature to the dimly lit atmosphere of traditional temples and restaurants.

About the Product

The optical construction consists of 17 elements in 12 groups, including specialized elements (3 Aspherical, 4 ED, and 1 UHR lens). This sophisticated design ensures excellent correction of aberrations and delivers the sharp, high-contrast images expected from a LEICA DG lens. The wide maximum aperture of F1.7 combined with the 9-blade circular diaphragm creates beautifully smooth bokeh and enables shooting in very dark environments.

The lens features an aperture ring for intuitive, hands-on control, which is highly valued by both photographers and videographers. Its fast and accurate autofocus system works reliably across the shooting range of 0.28m to infinity, and its maximum magnification equivalent to 0.28x offers decent close-up capability for detailed subjects.

Key Features

  • Constant F1.7 aperture from 10mm (20mm equivalent) to 25mm (50mm equivalent).
  • Aperture ring for manual exposure control.
  • Close minimum focusing distance of 0.28m.
  • High image quality with multiple specialized elements.
  • Robust metal mount for reliable performance.

Technical Specifications

FeatureSpecification
Lens MountMicro Four Thirds mount (Metal)
Focal Length (Actual)10-25mm
Focal Length (35mm Equiv.)20-50mm
Maximum ApertureF1.7 (constant)
Minimum Focusing Distance0.28 meters
Maximum Magnification (35mm Equiv.)0.28x
Filter DiameterØ77mm
MassApproximately 690g

What’s in the box (Included Items):

  • LEICA DG VARIO-SUMMILUX 10-25mm F1.7 ASPH. H-X1025 Lens
  • Protective UV Filter (Pre-installed)
  • Front Lens Cap
  • Rear Lens Cap
  • Lens Hood
  • Lens Hood Cap
  • Soft Case/Pouch

Where This Product Can Be Used:

  • Versatile travel photography, covering wide shots to standard views.
  • Professional video production (cinematic look due to F1.7 speed).
  • Low-light photography, including night cityscapes and interior shots of temples.
  • Environmental portraits with beautifully shallow depth-of-field.
  • Documentary photography that requires fast shutter speeds in dark environments.

Why Tourists Rent From Us

  • English-speaking customer support readily available.
  • Accept international credit cards for easy booking.
  • No requirement for a Japanese phone number for contact.
  • Offer convenient delivery directly to your hotel or Airbnb.
  • Easy and stress-free return process tailored for travelers.

Book with Jasumo:

If you are ready to rent this product, you can contact us with the Product Name, the Rental start date and end date, your delivery Location, and other important details you want to share. After we get a request from you, our team will start communicating with you as soon as possible.

Faqs:

Why is a constant F1.7 aperture on a zoom lens so significant?

Achieving a constant F1.7 aperture on a zoom lens is a major technological feat. It means that the brightness and depth-of-field remain the same regardless of the focal length you choose, which is critical for smooth zooming during video recording and consistent exposure and bokeh in still photography.

Is this lens suitable for video shooting?

Absolutely. Its constant F1.7 aperture, quiet autofocus (essential for built-in microphones), and the physical aperture ring allow for quick, smooth, and silent adjustments, making it a favorite for Micro Four Thirds videographers looking for cinematic quality.

How does the 20-50mm equivalent range help with travel photography in Japan?

This range is highly flexible: 20mm is wide enough for sweeping landscapes and large buildings, while 50mm is the classic “normal” perspective, perfect for street photography and standard portraits. This single lens can cover most general travel subjects exceptionally well.

What is the benefit of having a physical aperture ring?

The physical ring allows for intuitive, tactile control over exposure settings. Many photographers prefer the instantaneous feedback and the ability to quickly set the aperture without navigating menus, which speeds up shooting in dynamic environments.

Why does this lens have a relatively large filter diameter (Ø77mm)?

The large filter size is a result of the extreme optical engineering required to maintain the ultra-wide angle (20mm equivalent) and the very fast F1.7 maximum aperture across the entire zoom range, demanding a large front element to gather enough light.

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