Revised Optics for a lighter Super telephoto EF L Lens
Continues strong tradition of image quality associated with L-Series lenses
Super spectra coating (ssc) and Air sphere coating (asc) minimizes ghosting and flare
Increased heat shielding measures for reliable, longer shooting outdoors
This lens is ideal for sports and wildlife photography. The newly designed optical system has one fluorite element and two UD-glass elements to obtain high resolution and high contrast. Also, the minimum focusing distance was reduced to 18 ft. (5.5m). Extender EF 2x II can be attached to increase the focal length to 1200mm while retaining AF (at the center focusing point with the EOS-1v and EOS-3).