
- Robust housing
- Very high resolution in the centre of the image
- Suitable for open aperture
- Beautiful bokeh
- High resolution margin loss
- Unrubberised zoom ring
Extremely light-sensitive Leica telephoto zoom (F1.7) with a focal length of 50-100mm equivalent. Ideal for flexible shooting in low light as well as for isolated portraits. The elaborate construction of Leica lenses not only allows for brilliant sharpness all the way to the edges but also minimizes distortion and vignetting. A aperture ring for stepless exposure adjustment and a focus-clutch mechanism for direct manual focusing make operation easier. It is also characterized by a dust and splash water-resistant design and can be used in harsh conditions down to -10°C. Additionally, the lens allows for strong close-ups with 0.42x magnification at a distance of 31 cm while minimizing focus breathing.
Lens type | Telephoto lens, Zoom |
Bayonet lens mount | Micro Four Thirds |
Sensor compatibility | Micro Four Thirds |
Focus type | Autofocus |
Weight | 654 g |
Item number | 16225330 |
Manufacturer | Panasonic |
Category | Lenses |
Manufacturer no. | H-X2550E |
Release date | 7.7.2021 |
External links |
Colour | Black |
Minimum focus distance | 0.28 m |
Lens type | Telephoto lens, Zoom |
Bayonet lens mount | Micro Four Thirds |
Aperture | 1.70 f/ |
Min. aperture | 16 f/ |
Min. focal length (exact) | 25 mm |
Max. Focal length (exact) | 50 mm |
Focal length | 20 - 50 mm |
Sensor compatibility | Micro Four Thirds |
Number of diaphragm blades | 9x |
Filter thread | 77 mm |
Number of lenses | 16 |
Number of lens groups | 11 |
Lens equipment | Lens hood |
Focus type | Autofocus |
Durability | Cold resistant, Dustproof, Splashproof |
Aperture | f/1.7 - 16 |
Min. focal length (exact) | 0.03 m |
Max. Focal length (exact) | 0.05 m |
Filter thread | 0.08 m |
Country of origin | China |
Manufacturer commitment | RE100, SBTi |
CO₂ emissions | 1.44 kg |
Climate contribution | CHF 0.11 |
Scope of delivery | 1x back cover, 1x carrier bag, 1x front cover, 1x lens hood, 1x Panasonic LEICA 25-50 mm F1.7 Asph |
Weight | 654 g |
Length | 127.60 mm |
Diameter | 77 mm |
Length | 30.70 cm |
Width | 16.40 cm |
Height | 14.10 cm |
Weight | 1.19 kg |
How often does a product of this brand in the «Lenses» category have a defect within the first 24 months?
Source: Digitec GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec GalaxusHow often is a product of this brand in the «Lenses» category returned?
Source: Digitec Galaxus
The fast 25-50mm for the MFT system costs 2000 euros. Its image angles correspond to those of a 50-100 mm KB lens. At 25 mm we measured an almost constant resolution at a good level for the centre of the image at three apertures. The edge fall-off remains very moderate and decreases with stopping down...

The fast Panasonic Leica DG Vario- Summilux 1.7/25-50 mm delivers an impressive performance.