Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 ASPH Lens for Micro Four Thirds H-X1025E

For documentary photographers and videographers who need a fast, versatile wide-to-normal zoom, the Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 ASPH delivers constant f/1.7 brightness across its entire 20-50mm equivalent range. Capture crisp environmental portraits, low-light interiors, and smooth handheld video with confidence.

Key specifications

• Focal length: 10-25mm (35mm equivalent: 20-50mm)
• Maximum aperture: f/1.7
• Minimum aperture: f/16
• Lens mount: Micro Four Thirds
• Optical design: 17 elements in 12 groups (3 aspherical, 4 ED, 1 UHR)
• Diaphragm: 9 rounded blades
• Minimum focus distance: 28 cm
• Maximum magnification: 0.14x
• Filter size: 77 mm
• Weather sealing: Dust and splash resistant
• Aperture ring: Yes, de-clickable
• Autofocus: Yes, internal focus
• Image stabilization: No (relies on camera IBIS)
• Angle of view: 94° to 47°

Why choose it

The constant f/1.7 aperture provides exceptional light gathering and shallow depth-of-field control throughout the zoom range, making it ideal for available-light shooting. The de-clickable aperture ring enables silent, smooth exposure changes during video recording, while the dust- and splash-resistant construction supports use in challenging environments.

Ideal use cases

• Documentary and street photography
• Event and wedding videography
• Vlogging and content creation
• Travel photography with low-light capability

Good to know

This lens is part of Panasonic's premium Leica DG Vario-Summilux line, designed to deliver high resolution and contrast. The 77mm front filter thread allows direct attachment of standard filters without step-up rings.