Panasonic Leica DG Summilux 25mm f/1.4 ASPH Micro 4/3 Lens

Model #H-X025

USA Version
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Weight 7.05 oz (200 g)
Dimensions (DxL) Approx. 2.48 x 2.15" (63 x 54.5 mm)
Filter Thread Front:46 mm


Format Compatibility Micro Four Thirds
Angle of View 47°
Minimum Focus Distance 11.81" (.3 m)
Magnification 0.11 - 0.22x
Focal Length 25mm
Comparable Focal Length: 50 mm
Diaphragm Blades 7
Elements/Groups 9/7
Aperture Maximum: f/1.4
Minimum: f/16
Camera Mount Type Micro Four Thirds


Tripod Collar No
Autofocus Yes
Image Stabilization No
User Reviews
21 April 2016

This is an awesome lens. I have the m 4/3 version as well but I like this one better. Only con is the weight and size but the built quality is second to none.

13 January 2013

It could be my fav lens among all 4/3 AND M4/3 lens as well, the only thing hold it back for that is the size. But I can't complain about that, all DLSR lens with auto-focus are big, and this one's build quality is really really good.

17 November 2012

I feel that I don't have to review the image quality anymore. As there are more professional reviews and users have already done. However, I'd like to generally state 2 points here. 1.) The focusing is slower and noisier than the Micro 4/3 version.

17 August 2012

I rented this piece for a couple of weeks to knock out a couple weddings and some portrait sessions using my Olympus E-3. Let me start by saying that it's an impressive performer and will give you tack sharp images all the way down at f/1.4.

1 August 2012

I was really excited about trying out this lens Excitement lasted about the time it took me to open package Does not even come close to fitting on my GH2 How silly of me to think a LUMIX lens would fit on a LUMIX camera

20 April 2012

This lens provides beautiful bokeh and is sharp everywhere. A fantastic lens, I'm happy to see Leica will be producing one for the micro 4/3 mount as well.

20 December 2011

So I know that the 20mm f1.7 is a covetted lens on all M4/3 camera users gear list. I recently sold mine to take a chance on this lens. I was heavilly rewarded. The kicker for me was a the speed of the lens. I shoot predominantly in low light or in the always difficult varying lights in the house.

6 May 2011

I have some seriously mixed feelings about this lens. On the one hand, it's good, and I love shooting with it. On the other, its price is borderline obscene. It's an oddity of the Four Thirds system that fast, normal primes are so scarce.

11 January 2011

While this lens is not as sharp as the Olympus 50 f2, it's amazingly sharp at f1.4 and renders that Leica "glow" to photos. It provides some of the most beautiful and pleasant bokeh. Photos are creamy. Color is smooth with good contrast, but less pronounced than the Oly 50 f2.

31 August 2010

If you're looking at this lens, you know what it is. It's a classic, standard angle, fast prime lens. The low light performance at f/1.4 is great. AF speed is slow though on my E-600. I believe the internal mechanism on the lens itself is slow.

Product Highlights
  • F1.4 Brightness for Shallow Focus
  • Low Distortion, Chromatic Aberration
  • UHR (Ultra High Refractive) Lens
  • Reduced Ghost and Flare for Clear Photos
  • Circular Aperture Diaphragm
  • Durable Metal Mount
In The Box
  • Panasonic Leica DG Summilux 25mm f/1.4 ASPH Micro 4/3 Lens
  • Front Lens Cap
  • Rear Lens Cap
  • Lens Hood
  • Lens Storage Bag
  • Limited 1-Year Warranty
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