Updated Leica DG Summilux 25mm f/1.4 for MFT with weather sealing and improved optics.
The Leica DG Summilux 25mm f/1.4 II ASPH is a premium fast prime for Micro Four Thirds providing a 50mm equivalent view with the fast f/1.4 Summilux aperture. The Mark II revision adds weather sealing, improved coatings, and refined optics over the acclaimed original, making it the definitive normal lens for the MFT system.
Optical quality is outstanding with Leica-certified performance delivering exceptional sharpness, contrast, and the smooth bokeh rendering that the Summilux designation promises. The aspherical element controls aberrations effectively, and the updated coatings provide improved flare resistance and richer micro-contrast than the original version.
Build quality is premium with full dust and splash resistance, an all-metal barrel, and the refined mechanical quality expected of Leica-branded optics. The compact dimensions maintain MFT system portability while the f/1.4 aperture provides depth-of-field equivalent to approximately f/2.8 on full frame — sufficient for compelling subject isolation.
On the used market, the Summilux 25mm f/1.4 II offers Leica-certified optical quality with weather sealing for MFT at competitive prices. For MFT photographers wanting the finest normal-equivalent prime with environmental protection, it represents the pinnacle of what the system offers at the fifty millimetre equivalent focal length.