A NEW CHALLENGER HAS ARRIVED: LEICA M DIGITAL LEICA KILLER LUMIX S9, LEICA 35mm f2 SUMMICRON ASPH, YELLOW B+W FILTER / Design, Photo / By charlie yang A NEW CHALLENGER HAS ARRIVED: LEICA M DIGITAL LEICA KILLER LUMIX S9, LEICA 35mm f2 SUMMICRON ASPH, YELLOW B+W FILTER