Panasonic Leica DG Summilux 12mm f/1.4 ASPH. Lens

Model #H-X012

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MSRP: $1,299.00 ?


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Weight 11.82 oz (335 g)
Filter Thread Front: 62 mm
Dimensions (DxL) Approx. 2.76 x 2.76" (70 x 70 mm)


Format Compatibility Micro Four Thirds
Angle of View 84°
Minimum Focus Distance 7.87" (20 cm)
Focal Length 12mm Comparable 35mm Focal Length: 24 mm
Elements/Groups 15/12
Diaphragm Blades 9, Rounded
Magnification 0.1x
Aperture Maximum: f/1.4Minimum: f/16
Camera Mount Type Micro Four Thirds


Autofocus Yes
Expert Reviews
Imaging resource.34355410
19 July 2016

Panasonic's partnership with Leica continues to bear excellent fruit. The 12mm ƒ/1.4 Summilux provides an excellent shooting experience for Micro Four Thirds users, especially at the wide ƒ/1.4 aperture where it will probably spend most of its time being used.

8 July 2016

Specification A Panasonic lens for the Micro Four-Thirds system, marked with the Leica Summilux name, immediately evokes the great Summilux lenses of the past. This suggests something a bit special, something raising its head above the norm and our expectations increasing in a likewise manner.

22 February 2017

Panasonic’s new 12mm prime is fast and finely crafted and we’re seeing more top-quality, pro-grade lenses being launched for mirrorless cameras, with price tags to match. The initial cost of Panasonic’s new 12mm lens runs well into four figures, but it’s beautifully built.

Lenstip com.34355424
11 July 2017

The coronavirus crisis has been adversely affecting many businesses and, sad but true, ours is not an exception. Despite that difficult situation we would like to preserve continuity and high quality of publications available on all our websites.

  • +

    Solid, metal casing,, Very good image quality in the frame centre,, Sensible image quality on the edge of the frame (meaning values averaged out),, Negligible lateral chromatic aberration,, Quick decrease of vignetting on stopping down the aperture,, Silent, quick, and efficient autofocus.

  • -

    Distinct difference in sharpness between left and right sides of the frame,, Problems with longitudinal chromatic aberration,, Bothersome coma in the right part of the frame,, High distortion for RAW files,, Performance against bright light could have been better.

Trusted reviews.33834858
4 August 2016

With its fine optics and robust metal construction, there’s a lot to like about the Summilux 12mm f/1.4 Asph. Its fast maximum aperture should please Micro Four Thirds users who like to shoot in low light, while its robust dust and splash-proof construction will appeal to landscape photographers who...

4 August 2016

Andy Westlake gets his hands on a premium fast wideangle prime for Micro Four Thirds

28 June 2016

DG Summilux 12mm f/1.4 ASPH. lens is an excellent performer, although a bit on the pricey side, particularly when compared with the Lumix G 25mm f/1.7 ASPH. lens. But when build quality is taken into account, it represents decent value.

15 June 2016

Regardless of the technical results, this is a lens that produces images that look fantastic. Some might argue that's actually what a lens is for and we need look no further than that.

Photography blog.34969604
15 June 2016

The Panasonic Leica DG Summilux 12mm f/1.4 ASPH is an outstanding ultra-wide-angle prime lens. It's exceptionally well-built, weather-proof and delivers fantastic image quality at both the centre and edges of the frame, even when shooting wide-open at f/1.4, and the very welcome aperture ring makes...

User Reviews
B h photo.34921152
22 May 2018

This lens is a pleasure to use, incredibly sharp, great contrast, no distortion that I can perceive. It feels solidly built, operates smoothly and quietly and is beautifully finished as one would expect from a Leica labeled lens.

B h photo.34921152
5 October 2016

I always shot photos separately with a Canon because the mft cameras have always not cut it when it came to low light performance, shallow DOF, and color. But somehow, this lens addresses all of that in a big way.

B h photo.34921152
11 December 2017

I have recently been able to use this lens while filming in the midwest and it did not let me down. The stills were as sharp as I have seen with my GH4, even out to the edges while shooting wide open, and the video was clean as could be (it cleaned up the VFR 96fps a lot).

B h photo.34921152
27 August 2018

I already had a 20mm and 45mm for my micro four thirds camera. This high quality wide angle lens makes this collection more complete. It has already come in handy for its first job. Great optics with very little distortion.

B h photo.34921152
15 April 2017

Just purchased the GH5 with the 12-35mm, 12mm and 20mm to start my kit. This lens stands out among the three to me in hybrid shooting situations. Super fast, sharp and very pleased with build quality. Looking forward to exploring the pro lens lineup from Panasonic.

B h photo.34921152
11 October 2018

I've been using m43 on and off for 2 years, and have been impressed at how good the best m43 lenses are, and how poor some of the other m43 lenses are. Not suprisingly, the more expensive lenses tend to be the better ones, except for the simple lenses like the pancakes.

B h photo.34921152
3 October 2018

Great lens for indoor low light. Crisp and Clear.Great response under low light conditions.Lightweight. Manual aperature.

Product Highlights
  • Micro Four Thirds System
  • 24mm (35mm Equivalent)
  • Aperture Range: f/1.4 to f/16
  • Two Aspherical Elements
  • One ED Element, Two UED Elements
  • Weather-Resistant Construction
  • Rounded 9-Blade Diaphragm
Average Expert Score
Average User Score
In The Box
  • Panasonic Leica DG Summilux 12mm f/1.4 ASPH. Lens
  • Front and Rear Lens Caps
  • Metal Lens Hood
  • Lens Storage Bag
  • Limited 1-Year Warranty
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