From the Manufacturer
Virtually the standard lens for many professional sports shooters, this optical powerhouse is ideal for any film or digital application where you need telephoto power and low-light capability. With one Fluorite element and two UDglass elements, its one lens you won't need to stop down to get a good image. The Image stabilization only adds to its all-around abilities. Details include a network of weather-resistant seals and gaskets, and a focus preset that enables instant return to a memorized focusing distance.
See a Different Dimension
A super telephoto lens can make an ordinary scene into an extraordinary one. Its ability to see surpasses that of the human eye. It can compress images and make them look as if they come from another dimension. It opens up new realms of photographic expression. All EF super telephoto lenses are L-series lenses to provide the highest quality. The USM provides quiet and high-speed autofocusing. These lenses promise outstanding delineation and put your imagination to the test.
Product Description
Bring your photographic subjects closer with this Canon EF 400mm f/4L IS USM Super Telephoto Lens. This next-generation super telephoto L-series lens with an Image Stabilizer is one of the world's best lenses for wildlife and nature photography, as well as low-light and sports situations. The optical system is designed with a maximum aperture of f/2.8. One fluorite element and two UD-glass elements effectively correct aberrations resulting in sharp and excellent delineation. The ring USM and an improved AF drive algorithm make the AF speed the fastest in the world when used with the EOS-1v and EOS-3.
Diagonal Angle of View - 6°10' Focus Adjustment - Inner focusing system with USM Closest Focusing Distance - 9.8 ft./3m Filter Size - 52mm Drop-In Max. Diameter x Length - 6.4 in. x 13.7 in./163 x 349mm Weight - 11.8 lbs./5370g Canon 1 year limited warranty