Manufacturer description: Achieving high picture quality, the new LUMIX G VARIO 35-100mm / F4.0-5.6 ASPH. / MEGA O.I.S. designed in stunningly compact metallic profile with retractable structure despite a lens with this versatile focal distance of 35-100 mm (Equivalent to 70-200 mm on a 35mm camera). Comprised of 12 lenses in 9 groups, the lens system realizes uniform descriptiveness with its excellent contrast from the center to the corners, equal brightness at entire zoom range and high resolution. Notably, 2 ED (Ultra Extra-Low Dispersion) lenses minimize chromatic aberration. An aspherical lens helps achieve high optical performance while allowing dramatic downsizing of the lens unit.