Panasonic
Panasonic Lumix G Leica DG Vario-Summilux 10-25mm F1.7 ASPH. Lens camera kit
Micro Four Thirds zoom covering 20-50mm equivalent with constant F1.7 aperture, 17 elements in 12 groups, three aspherical and four ED lenses, stepless aperture ring, inner focus drive.
- Constant F1.7 brightness across the 10-25mm zoom range
- 17 elements in 12 groups with three aspherical and four ED lenses
- Stepless de-clicked aperture ring for smooth exposure transitions
- Focus clutch mechanism enables instant AF/MF switching
- Inner focus drive delivers near-silent operation for video
Micro Four Thirds constant-aperture zoom
The Panasonic Lumix G Leica DG Vario-Summilux 10-25mm F1.7 ASPH. lens kit delivers a bright F1.7 aperture across the full 10-25mm zoom range on Micro Four Thirds mirrorless cameras. Built to Leica quality standards, its optical design uses 17 elements in 12 groups including three aspherical and four ED lenses for high resolution and corrected aberrations. The inner focus drive system provides near-silent operation suited to both photography and video work.
Hybrid shooters needing silent aperture control
Photographers and videographers who require smooth, stepless aperture transitions during recording will benefit from the de-clicked aperture ring and micro-step drive system. The focus clutch mechanism allows instant switching between autofocus and manual focus with accurate manual control. Users who need a longer telephoto reach or a different mount system should consider alternative lenses.
Constant F1.7 aperture through 10-25mm zoom
The defining specification is the F1.7 maximum aperture maintained throughout the entire 10-25mm focal length range, equivalent to 20-50mm in 35mm format. This constant brightness enables consistent exposure and depth of field control while zooming, which is critical for video production and low-light photography. Compatibility with 240-fps sensor drive supports high-speed, high-precision autofocus performance.
Highlights
- Constant F1.7 brightness across the 10-25mm zoom range
- 17 elements in 12 groups with three aspherical and four ED lenses
- Stepless de-clicked aperture ring for smooth exposure transitions
- Focus clutch mechanism enables instant AF/MF switching
- Inner focus drive delivers near-silent operation for video
Specifications
| Brand | Panasonic |
|---|---|
| Model | Not Available |
Questions about this item
Will the 10-25mm F1.7 zoom focus quickly on my Micro Four Thirds body with a 240 fps sensor drive?
Yes, the lens is designed for compatibility with a maximum 240-fps high-speed sensor drive, delivering high-speed, high-precision autofocusing on supported Micro Four Thirds cameras.
How can I verify the stepless aperture ring is operating smoothly during a video take?
The de-clicked aperture ring and micro-step drive system provide silent, step-free iris transitions; watch for flicker-free exposure shifts while zooming from 10 mm to 25 mm at F1.7.
Does the kit include the H-X1025 lens only, or are hood, caps and pouch also supplied?
The H-X1025 lens ships with front and rear caps, a petal-type hood and a protective pouch; no additional accessories are required for basic operation.
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