This
is a
EF Lens 400mm 2.8L
IS USM
Caractéristiques
Diagonal Angle of View: 4° 10'
Lens Construction (elements/groups): 17/13
Closest Focusing Distance (m): 5.5 m / 18 ft.
Focus adjustment: Inner focusing system with
USM
Filter Diameter (mm): 52 mm Rear Drop-in
Objectif idéal pour photographier les événements sportifs et la vie sauvage
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 5.5 m. Extender
EF 2x can be attached to increase the focal length to 1200mm while retaining
AF (with the EOS-3).