Fast standard prime lens for Micro Four Thirds cameras.
The Panasonic Leica DG Summilux 25mm f/1.4 II ASPH. is the second-generation version of the fast standard prime for Micro Four Thirds, produced under the Leica DG collaboration. The 25mm gives 50mm full-frame equivalent — the classic normal perspective — with a fast f/1.4 aperture. The II generation adds weather sealing and improved coatings.
25mm focal length (50mm full-frame equivalent), f/1.4 maximum aperture, Leica DG Summilux design, weather-sealed (IPX1), ASPH aspherical element, Micro Four Thirds mount, 46mm filter thread.
The DG Summilux 25mm f/1.4 II is the definitive fast normal prime for the MFT system, providing shallow depth of field and low-light performance in the classic 50mm-equivalent perspective. The weather sealing makes it practical for outdoor use alongside MFT bodies with weather sealing. The Leica DG collaboration ensures consistent optical quality.
Test at f/1.4 for sharpness and bokeh quality. Check weather seals. Inspect elements for haze and ASPH coating condition. Confirm MFT mount engagement. Check aperture blades for oil-free operation at f/1.4.