Constant f/2.8 Maximum Aperture Throughout Entire Zoom Range/ Air Sphere Coating (ASC)/ Optical Image Stabilization At Up To 3.5 Stops Of Shake Correction/ Fluorine Coating On Front And Rear Elements/ Highly Resistant To Dust And Water, And Improved Durability Even In Harsh Conditions/ Inner Focusing System With Ring Ultrasonic Motor/ Full-Time Manual Focus/ One Fluorite Element And Five UD Elements/ 77mm Filter Size/ 23 Elements In 19 Groups Lens Construction/ White Finish
