Canon EFS 55-250mm f/4.0-5.6 IS II Telephoto Zoom Lens for Canon Digital SLR Cameras Focal Length & Maximum Aperture: 55-250mm F/4-5.6 12 Elements In 10 Groups, Including One UD-glass Element Focus Adjustment: DC Motor, Gear-driven(front Focusing Design) Closest Focusing Distance: 3.6 Ft./1.1m