Canon EF 400mm f/5.6L USM

Lens Reviews / Canon Lenses i Lab tested
Lens Specifications
Name Canon EF 400mm f/5.6L USM
Image Circle 35mm
Type Telephoto Prime
Focal Length 400mm
APS Equivalent 640mm
Max Aperture f/5.6
Min Aperture f/32
Diaphragm Blades 8
Lens Construction 7 elements in 6 groups, including 1 UD and 1 S-UD element
Diagonal Angle of View(Based on image circle) 6.2 degrees
Focus Details Inner focusing; full-time manual focus and USM
Front Element Rotation No
Zoom System n/a
Closest Focus 3.5m / 11.5 ft.
Magnification Ratio 0.12x / 1:8.3
Filter Size 77mm
Dimensions(Length x Diameter) 256mm x 90mm / 10.1 in. x 3.5 in.
Weight 1.25kg / 2.8 lb
Notes Built-in hood; detachable tripod mount
Typical Online Price US$1,100