Panasonic 42.5mm f/1.2 ASPH. POWER O.I.S. Lens Short Description Micro Four Thirds System 85mm Equivalent Focal Length Fast f/1.2 Maximum Aperture Optical Image Stabilization Nano Surface Coating Two Aspherical Elements One Extra-low Dispersion Element One Ultra High Refractive Index Element Nine Circular Diaphragm Blades External Aperture Ring & Metal Design