The Lumix G 20mm/F1.7 Ii Asph, is a compact and lightweight ""pancake"" lens with outstanding brightness. Featuring a new metallic profile in the Micro Four Thirds standard. It boasts dramatic compactness and light weight despite its F1.7 aperture that enables beautiful soft focus in the background, allowing the subject to stand out impressively. Comprised of seven lenses in five groups, the new system uses two aspherical lenses to minimize both distortion and chromatic aberration, achieving incredibly high resolution corner to corner. The versatile 20mm focal distance (equivalent to 40mm on a 35 mm film camera) is suitable for wide variety of photography including scenery such as sunsets and dimly lit indoor shots taking advantage of its beautiful soft focus. It supports the Contrast Af system for high precision auto focusing. Seven blades give the aperture a rounded shape that produces an attractively smooth effect in unsharp areas when shooting at large aperture settings.