We got our hands on the recently announced Leica DG Nocticron 42.5mm F1.2 ASPH OIS at the CES trade show in Las Vegas. It's an ultra-fast portrait prime for Micro Four Thirds that offers an 85mm equivalent field of view. We shot some quick samples mounted on the Panasonic Lumix DMC-GH3, including an aperture progression series.  

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