Canon EF 200-400mm f/4L IS USM Extender 1.4X

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Lens Specifications
Name Canon EF 200-400mm f/4L IS USM Extender 1.4X
Image Circle 35mm
Type Telephoto Zoom
Focal Length 200 - 400mm
APS Equivalent 320 - 640mm
Max Aperture f/4
Min Aperture f/32
Diaphragm Blades 9 (circular)
Lens Construction 25 elements in 20 groups (incl. 1 rear filter); one fluorite and four UD lens elements
Diagonal Angle of View (Based on image circle) 12 to 6.2 degrees
Focus Details Inner focusing; Full-time manual focus and ring USM; Ring USM, High-speed CPU and optimized AF algorithms; Power Focus mode; Focus Limiter
Front Element Rotation No
Zoom System Rotating
Closest Focus 2.0m / 6.6 ft
Magnification Ratio 0.15x / 1:6.7
Filter Size 52mm drop-in
Dimensions (Length x Diameter) 366mm x 128mm / 14.4 in. x 5.0 in.
Weight 3.62Kg / 7.98 lb
Notes Built-in 1.4x extender (8 elements in 4 groups) switches to 280-560mm f/5.6 lens with 0.21x / 1.48 magnification ratio; 4-stop Image Stabilization; Included tripod collar and hood; Hard case available for US$800.
Typical Online Price US$11,800