Tokina 80-400/4.5-5.6 AT-X D Telephoto Zoom SLR Camera Lens for Canon EOS USA

Lens Construction 20 Elements in 14 Groups Angle of View 30.3 - 6.2 degrees Number of Diaphragm Blad
Product DescriptionThis was the smallest zoom lens available that had a bright f/5. 6 aperture at 400mm. Now Tokina has recreated the lens for the digital age. Still the smallest SLR lens available that zooms to 400mm, the AT-X 840 AF D has a smooth and quick internal focusing system that means the all-metal inner barrel that houses the heaviest glass elements does not have to rotate when

Source: Digital Camera and Video Store...