Key Features EF-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/22 One XLD Element, Five LD Elements eBAND, BBAR, and Fluorine Coatings Ultrasonic Silent Drive Autofocus Motor VC Image Stabilization Dust and Moisture-Resistant Construction Removable Arca-Compatible Tripod Mount Rounded Nine-Blade Diaphragm...