Panasonic 25mm f/1.4 Leica DG Summilux MFT

Launched in June 2011, Panasonic’s 25mm f/1.4 Leica DG lens might seem wide but mounted to a FourThirds system camera with its 2x crop factor, it’s equivalent to a 50mm prime.

Panasonic 25mm f/1.4 Leica DG Summilux MFT

Panasonic 25mm f/1.4 Leica DG Summilux MFT

Designed for use with Panasonic’s G-Series Compact System Cameras like the Lumix G3 and GX1, the FourThirds mount also makes the Panasonic 25mm f/1.4 Leica DG compatible with Olympus CSCs like the Pen E-PL3 or E-P3.

The lens is made up of nine glass elements in seven lens groups with two aspherical lenses and one Ultra High Refractive (UHR) index lens. Seven diaphragm blades give the aperture a rounded shape and Nano Surface coatings help reduce the effects of ghosting and flare. Like the Nikon, Pentax and Samyang lenses, it has a minimum focus distance of 30cm.

For £439 you get a wonderfully constructed and compact lens with a high-end feel and a metal mount at the rear. The focus ring is perfectly weighted for an incredibly smooth motion and with Manual Focus set via the camera on G-Series CSCs, there’s no AF/MF switch on the barrel.

We experienced silent and nimble AF operation during testing and although hunting wasn’t a major concern in bright lighting, there were some signs in dimmer conditions. Filters can be attached via the 46mm thread and Panasonic’s H-X025 lens hood is included to help prevent flare, but unfortunately it can’t be reversed onto the lens for space-saving purposes.


  • Street price: £379 (As of July 2016)
  • Max aperture: f/1.4
  • Min aperture: f/16
  • Filter thread: 46mm
  • Weight: 200g
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This review was first published in the September 2011 issue of Practical Photography - download back issues here.