The Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 is a Panasonic 10–25mm zoom for Micro Four Thirds, released in 2019. It covers 20–50mm in full-frame terms at a maximum aperture of f/1.7. It offers weather sealing and a 690g build.
Best for: Everyday zoom covering wide to short telephoto
Pros
- Constant f/2.8 aperture throughout the zoom range
- Weather sealed for outdoor and adverse conditions
- Wide starting focal length at 20mm equivalent
Cons
- Bulkier than compact alternatives
- High price point
What this lens is good for
Video and run-and-gun
A constant f/1.7 zoom covering 20-50mm full-frame equivalent, with no equivalent in any other system. It effectively replaces a set of fast wide-to-normal primes in one lens, which is why it has become a halo lens for M43 video and event shooters who need to move fast.
Low light and astro
The constant f/1.7 aperture is brighter than any f/2.8 zoom, gathering far more light for dim interiors, night street, and even astro across its wide-to-normal range. Weather sealing adds flexibility for outdoor low-light work. Full guide →
Specifications
| Lens | |
| Brand | Panasonic |
| Type | zoom |
| Status | current |
| Released | 2019-11 |
| Mount | mft |
| Optics | |
| Focal length | 10-25mm |
| FF equivalent | 20-50mm |
| Max aperture | f/1.7 |
| Min aperture | f/22 |
| Aperture blades | 9 |
| Elements / Groups | 22 / 17 |
| Focus | |
| Autofocus | Linear Motor |
| MF override | Yes |
| Min focus distance | 0.28m |
| Max magnification | 0.2x |
| Stabilisation | |
| OIS | No |
| Dual IS compatible | No |
| Physical | |
| Weather sealed | Yes |
| Filter size | 77mm |
| Weight | 690g |
| Dimensions | 103.5mm length x 80mm diameter |
| Pricing | |
| Price (approx.) | $1,797 USD |