Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 ASPH Lens
The Panasonic 10-25mm f/1.7 ASPH is a 10–25mm f/1.7 lens designed for Micro Four Thirds mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 ASPH Lens
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Lens Overview — Panasonic 10-25mm f/1.7 ASPH
Key Features — Panasonic 10-25mm f/1.7 ASPH
Constant f/1.7 Aperture: Maintains a maximum aperture of f/1.7 throughout the entire zoom range, a rare capability that ensures consistent exposure and depth of field control without stopping down as you zoom.
20-50mm Full-Frame Equivalent: Covers a versatile wide-angle to short standard range on Micro Four Thirds bodies, spanning from environmental wide shots to natural-perspective framing in a single lens.
Leica DG Summilux Optics: Co-developed with Leica and built to Summilux optical standards, including ASPH aspherical elements designed to minimize distortion, chromatic aberration, and coma.
Micro Four Thirds Mount: Natively compatible with the full range of MFT mirrorless bodies from Panasonic and Olympus/OM System, offering broad system flexibility.
Autofocus and Manual Focus: Supports both AF and MF operation, giving photographers and videographers the flexibility to switch between focus modes depending on the shooting scenario.
77mm Filter Thread: Standard 77mm front thread is widely supported, making it straightforward to use ND filters, polarizers, and other common filter types.
Lens Specifications — Panasonic 10-25mm f/1.7 ASPH
| Spec | Detail |
|---|---|
| Use Cases | Landscape, Architecture, Video / Cinematography, Travel |
| Lens Type | Zoom |
| Format | Micro Four Thirds (MFT) |
| Zoom/Prime | Zoom |
| Focal Length | 10–25mm |
| Maximum Aperture | f/1.7 |
| Camera System | Mirrorless |
| Lens Mount | Micro Four Thirds |
| Autofocus | Yes |
| Focus Type | Manual, Auto |
| Image Stabilization | None |
| Filter Thread | 77mm |
Description — Panasonic 10-25mm f/1.7 ASPH
The Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 ASPH is a zoom lens designed for the Micro Four Thirds mirrorless camera system. It covers a 10-25mm focal length range in the wide-angle category, making it useful for a variety of subjects including landscapes, architecture, and environmental portraits. The standout specification is the f/1.7 constant maximum aperture across the entire zoom range, which is uncommon among zoom lenses and provides consistent light-gathering capability whether shooting at 10mm or 25mm.
The lens supports both autofocus and manual focus, and uses a 77mm filter thread for compatibility with standard photographic filters. Weighing 690g, it is a substantial lens within the MFT ecosystem. One consideration for buyers: the lens has no built-in image stabilization, so pairing it with a body that offers in-body stabilization is recommended for handheld shooting in lower light.
The Micro Four Thirds mount ensures broad compatibility across MFT mirrorless bodies.
Pros — Panasonic 10-25mm f/1.7 ASPH
- ✓Constant f/1.7 maximum aperture across the full 10-25mm zoom range, ideal for low-light shooting
- ✓Wide-angle to short standard zoom coverage (10-25mm) on the Micro Four Thirds format in a single lens
- ✓Supports both autofocus and manual focus, providing flexibility for different shooting scenarios
Cons — Panasonic 10-25mm f/1.7 ASPH
- ✗No image stabilization built into the lens, making users dependent on in-body stabilization
- ✗At 690g, this is a heavy lens for the Micro Four Thirds system, which may affect portability
- ✗The wide 77mm filter thread adds to cost when purchasing filters or filter accessories
Videos — Panasonic 10-25mm f/1.7 ASPH
Panasonic Leica 25-50mm F1.7 Review — DPReview TV