Canon EF 70-200mm f/2.8L IS USM Lens

Features Compatible with all Canon EOS DSLR Cameras Up to 3 Stops of Image Stabilization Superior Image Quality Ultra-Low Dispersion UD Glass Fluorite & Aspherical Elements Super Spectra Multi Coating Ultra Sonic Motor - USM Constant f/2.8 Aperture Filter Size - 77mm Eight Blade Circular Aperture Resistant to Dust and Moisture The EF 70-200mm f/2.8L IS USM Telephoto Zoom Lens is an incredible optic with robust design and tacksharp results. Second-generation Image Stabilization responds in as little as 0.5 seconds while providing up to three stops stabilization that as handholdable as a normal lens. IS now automatically deactivates when on a tripod by sensing non-movement of the camera and lens, also conserving battery power. An entirely new optical formula produces images that are superior to even its highly regarded predecessor, the EF 70-200mm f/2.8 L, despite having more reflective surfaces within the lens. Rubber O-ring can be combined with EOS 1V and EF "II" telecon