Canon EF 400 mm f/5.6L USM

This lens is an EF 400mm f/5.6L USM.

Features

Focal length and maximum aperture: 400 mm f5.6
Lens construction: 7 elements in 6 groups
Diagonal angle of view: 6°-10°
Focus adjustment: Inner focusing system with USM
Closest focusing distance: 3.5m / 11.5ft
Filter size: 77mm

This high-performance lens was designed with portability and handling ease in mind

This high-performance lens was designed with portability and handling ease in mind.
One super UD-glass element, whose characteristics are similar to fluorite, and one UD-glass element result in sharp pictures from corner-to corner.

The lens also has a built-in hood and a detachable tripod mount.

Photo Quote: Photographs are of course about their makers, and are to be read for what they disclose in that regard no less than for what they reveal of the world as their makers comprehend, invent, and describe it. - A. D. Coleman