Panasonic LUMIX G Leica DG Summilux 15mm f/1.7 ASPH Micro Four Thirds Lens Mount Wide-Angle Camera Lens (Black) + 5 Piece Essentials Accessory Kit Wide angle lens with a 35mm-equivalent focal length of 30mm, making it ideal for everyday photo shoots. Wide bright F1.7 aperture, ideal for working in difficult lighting conditions and for controlling depth of field for selective focus applications. Features three aspherical elements designed to help reduce spherical abberation and distortion and to produce consistently sharp and clear photos. Internal Focusing and Stepping AF Motor and a nano surface coating designed to minimize reflections and lens flare and ghosting. Micro Four Thirds Lens Mount with metal lens barrel accentuated with MF/AF switch and aperture switch for direct operation.