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Panasonic LEICA DG Vario-Summilux 25-50mm f/1.7 ASPH announced

The companion Micro Four Thirds zoom to the DG-Vario Leica 10-25mm f1.7 is here

Panasonic has announced the long-awaited 25-50mm f1.7 Leica DG Vario-Summilux telephoto zoom lens for Micro Four Thirds.

Designed to be used in tandem with the Leica DG-Vario 10-25mm f1.7, the new 25-50mm (35mm equivalent to 50-10mm) boasts high optical performance for both photo and video. 

Nevertheless, the new Leica DG-Vario Summilux 25-50mm f1.7 looks like the perfect companion telephoto zoom for the upcoming Panasonic GH6 and the new GH5 mark II.

Advanced Optical Formula with 3 Extra Low Dispersion Elements

In addition, the optical formula includes 16 elements arranged in 11 groups including an aspherical lens and 3 Extra-low Dispersion elements. The latter effectively suppress the axial chromatic aberration and chromatic aberration of magnification.

Spherical aberration and distortion are also corrected by the aspherical lenses for stunningly high resolution. The use of aspherical lenses and the optimum design of the lens system results in a compact size and light weight while still achieving outstanding optical performance.


77mm front diameter for ND, Polarizers and diffusion filters

Those looking to use their 77mm front filters with the new Vario Summilux 25-50mm are in luck – as this is the exact front filter diameter of this lens.

Leica DG Vario Summilux 25-50mm f1.7
Image by Panasonic/Lumix USA

Step-less Aperture Ring and Adaptive Focus

According to Panasonic, their latest zoom for Micro Four Thirds is compatible with a maximum 240-fps high-speed sensor drive for some really high-speed, high-precision auto focusing.

In addition to the silent operation achieved by the inner focus drive system, the step-less aperture ring and micro-step drive system in the aperture control section help the camera to smoothly catch up to brightness changes when zooming or panning.

The optical design achieves exceptional barycentric stability to minimize image shifts during zooming. The “switchable” focus ring is a feature that a lot of video creators will surely appreciate. This new zoom is equipped a focus ring, which can be pushed forwards or backwards for linear and non-linear response for more intuitive and precise focusing experience. 

Furthermore, the new LEICA Summilux 25-50mm f/1.7 also excels in video recording performance with a mechanism that suppresses focus breathing at entire zoom range.

Panasonic Leica DG-Vario 25-50mm f1.7 Quick Features / Specifications:

  • Lens mount/Format Compatibility: Micro Four Thirds
  • 50-100mm (35mm Equivalent)
  • Aperture Range: f/1.7 to f/16
  • Optical Design 16 Elements in 11 Groups
    • 1 x Aspherical Element
    • 1 x UHR Element
    • 3 x ED Elements
  • Linear AF Motor, Focus Clutch Mechanism
  • Step-less, De-Clicked Aperture Ring
  • Splash, Dust, and Freezeproof Design
  • Rounded 9-blade aperture design
  • Angle of View 47 to 24 degrees
  • Minimum Focus Distance: 11″ / 28 cm
  • Maximum Magnification: 0.21x
  • Filter Size: 77 mm (Front)
  • Dimensions: 3.4 x 5″ / 87.6 x 127.6 mm
  • Weight 1.4 lb / 654 g
  • Pre-order: $1,798 at B&H

Splash-Resistant Design

The new Panasonic Leica 25-50mm f/1.7 ASPH has a minimum focusing distance of just 0.28 cm (at the 25mm wide end, and 0.31m at telephoto end). In addition, lens features a maximum magnification ratio of 0.42x (35mm camera equivalent) for superior macro photography.

Nevertheless, the new Leica designed zoom boasts a rugged dust/splash-resistant design ensuring excellent performance even out in the elements even at -10 C degrees. 

Pre-order price and Availability

And last, but not least, the new Panasonic DG-Vario Leica Summilux 25-50mm f1.7 ASPH is available to pre-order from authorized dealers such as B&H for $1,799.

According to Panasonic, the lens is expected ship towards the end of August.

via Panasonic/Lumix USA


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