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, and is ideal for capturing wide landscape shots. The f1.4 aperture, which is made up of nine aperture blades, guarantees an attractively smooth effect in out-of-focus areas when shooting at larger aperture settings. Capable of smooth, silent operation, the Panasonic 12mm f1.4 ASPH Leica DG SUMMILUX Lens is also a great option for those filming 4K video.