Previous news story    Next news story

Panasonic unveils Leica Summilux DG 25mm F1.4 lens

By dpreview staff on Jun 13, 2011 at 05:00 GMT
Buy on GearShop

Panasonic has announced its long-anticipated Leica Summilux DG 25mm F1.4 lens for the Lumix G system. Also known as the H-X025, it's the company's second premium Leica-branded lens for Micro Four Thirds, and the first to employ Nano Surface Coating for more efficient reduction of flare. It employs nine elements in seven groups, including two aspherical elements and one UHR (Ultra High Refractive) glass element, and a rounded 7-bladed aperture diaphragm designed to render pleasingly-blurred backgrounds. It will be available from August 2011, at a price to be announced.

Jump to:

Press Release:


The New LEICA DG SUMMILUX 25mm / F1.4 ASPH. Lens  Compatible With Panasonic LUMIX G Series of Compact System Cameras, Including LUMIX GF3

SECAUCUS, NJ (June 13, 2011) – Panasonic today announced a new interchangeable Micro Four Thirds lens, the LEICA DG SUMMILUX 25mm/F1.4 ASPH. (H-X025), compatible with the company’s LUMIX G Series of compact system cameras (CSC), including the LUMIX GF3, which was also announced today. The LEICA DG SUMMILUX 25mm / F1.4 ASPH. lens features outstanding brightness of F1.4, and despite the high-performance, it also remains incredibly compact and lightweight. The lens’ brightness allows for a beautiful soft focus when shooting both photos and videos – without having to rely on a flash.   

The LEICA DG SUMMILUX 25mm / F1.4 ASPH. lens adopts Panasonic’s Nano Surface Coating technology on the surface of the lens, which helps dramatically minimize reflection at the entire visual light range (380nm-780nm). The technology encompasses an extra-low refractive index coating with nano-sized structure and results in the super-clear photo with dramatic reduction of ghost and flare.
The new lens system comprises of nine elements in seven groups using two aspherical lenses and one UHR (Ultra High Refractive) index lens. The newly developed UHR index lens and glass mold aspherical lenses achieve uniformed description from the center to the edges. 

The lens’ versatile 25mm focal distance (Equivalent to 50mm on a 35mm camera) is suitable for wide variety of occasions, giving users the flexibility in composition, perspective and aperture control.  The lens is capable to take daily snapshots including scenic sunsets to dimly-lit indoor shots to the deliberately-creative shots using soft focus.

When mounted on the Panasonic LUMIX G Series digital cameras, the LEICA DG SUMMILUX 25mm/F1.4 ASPH. lens can take maximum advantage of Contrast AF system, which boasts both high accuracy and high speed for optimal photos. Furthermore, seven blades give the aperture a rounded shape that produces an attractively smooth effect in out-of-focus areas when shooting at larger aperture settings. The lens also features a metal mount, making it extremely durable – even when repeatedly changed.

The LEICA DG SUMMILUX 25mm / F1.4 ASPH. lens will be available in August 2011 and pricing will be announced approximately 30 days prior to shipping. For more information about Panasonic LUMIX G Series digital cameras and Micro Four Third lenses, please visit

Panasonic Leica DG Summilux 25mm F1.4 ASPH specifications

Price • US: $tba
• UK £549.99
Focal length 25mm
Maximum Aperture F1.4
Minimim Aperture F16
Image Stabilisation No
Aperture • 7 blades
• Circular aperture
Optical construction • 9 elements / 7 groups
• 1 Ultra High Refractive Index element
• 2 aspherical elements
Minimum Focus 0.30m (0.98 ft)
Maximum magnification 0.11x
Filter thread 46mm
Dimensions 63mm diameter x 54.5mm length (2.5" x 2.1")
Weight 200g (7.05 oz)
Mount Micro Four Thirds
Supplied accessories • Front and rear caps
• Storage bag
I own it
I want it
I had it
Discuss in the forums
Our favorite products. Free 2 day shipping.
Support this site, buy from dpreview GearShop.
Panasonic Leica Summilux DG 25mm F1.4


Total comments: 3
By cformont (Dec 20, 2012)

So I assume this isn't the best lens to utilize for any type of landscape photos? I took some pics tonight and they came out like a painting instead of a picture. I would have used my other lens but didn't have it on me at the time. I tried closing the F stop to like f11 because i wanted more depth of field to get everything in focus but results weren't too good. Any help would be appreciated. thx!

By jalywol (Dec 29, 2012)

You may want to post this question (include a copy of the photo, too) to the Micro Four Thirds forum. I am sure you can get the problem figured out with some help there.

By Timmbits (Jan 26, 2013)

I was just doing a lens hub search, and came across this lens... it sounded pretty good! I was just about to consider buying a GX1 for my daughter just so I can get this f/1.4 lens but with your feedback I don't know now.

For landscape, perhaps you may like to consider a wider angle lens, that is more designed for that?

I don't know if they are any good, but these came up during my search, and would be more appropriate (or at least come close) for landscape:
or even this zoom lens

Do keep in mind that the relative focal length is x2 for MFT... so a 19mm is similar to a FF 38mm... you can definitely use wider for landscape. (I just wish they would start quoting in viewing angle in addition to focal length)

Total comments: 3