The 12mm f1.4 ASPH Leica DG SUMMILUX Lens from Panasonic is a high-quality, high-speed lens made up of 15 elements in 12 groups. Constructed from durable metal, the lens has a sophisticated design to match the line-up of LUMIX G cameras, and is dust and splash proof. Due to the wide focal length and rugged build, it is suitable for outdoor photographers,