Canon EF 70-200mm f/2.8L IS II Telephoto Zoom Lens USM, Model EF70-200LIS2 - International Version EF Mount L-Series Lens Aperture Range: f/2.8-32 Fluorite & Ultra-Low Dispersion Elements Two Mode Optical Image Stabilization Ultrasonic Focus Motor Super Spectra Multi Coating Manual Focus Override Minimum Focus Distance: 3.9' Eight Blade Circular Aperture Dust & Moisture Resistant Sealing