70-200mm, f/2.8 Focal Length & Maximum Aperture/ 17 Elements In 13 Groups Lens Construction/ 77mm Filter Size Diameter/ 9 (Circular) Aperture Blades/ Independent Nano USM Focus Drive System/ Optical Image Stabilization With Up To 5 Stops Of Shake Correction/ Dust And Weather Resistant/ Fluorine Coating/ Vibration Shock Resistance/ Two Aspherical Elements, One Super UD And One UD Lens/ White Finish
