Equipped with new NANO USM technology combining Ring USM and STM for smooth and near-silent video and high-speed AF for still capture. Improved driving speed of the focusing lens up to 4.3x* (Tele) and 2.5x* (Wide) for faster autofocus. Compatible with new Power Zoom Adapter PZ-E1, providing electrical zooming that helps deliver more natural zooming while shooting video. Dynamic IS helps reduce camera shake when shooting video for improved image quality even when the user is in motion. Closest Focusing Distance:1.28 ft./0.39m No. of diaphragm blades 7