A fast aperture super-wide prime lens with the world's first depth of field scale in a compact system camera lens. Designed for rapid hyperfocal shooting, its quick-clutch manual focus ring enables quick focus-free candid or reportage photography. MSC drive technology assures super-fast and quiet autofocusing. Olympus introduces its revolutionary new ZERO (Zuiko Extra-low Reflection Optical) multicoating with this new high performance lens for maximum shooting confidence in challenging contra-jour lighting conditions. An all metal barrel design provides durability and a premium build quality.