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Canon  200-400mm f/4 IS USM Extender 1.4x
9.6 out of 10

Canon 200-400mm f/4 IS USM Extender 1.4x

Designed to satisfy the discriminating needs of sports and Read more

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Focal Length & Maximum Aperture
Built-in extender at 1x: 200-400mm, 1:4.0 Built-in extender at 1.4x: 280-560mm, 1:5.6
Lens Construction
Built-in extender at 1x: 25 elements in 20 groups (incl. 1 rear filter) Built-in extender at 1.4x: 33 elements in 24 groups (incl. 1 rear filter)
Diagonal Angle of View
Built-in extender at 1x: 12°-6°10' Built-in extender at 1.4x: 8°50'-4°25'
Focus Adjustment
Inner focusing system
Closest Focusing Distance
6.6 ft. / 2m
Filter Size
52mm drop-In
Max. Diameter x Length, Weight
5.0 x 14.4 inches, 127.7 oz. / 128 x 366mm, 3620g
Release Date
First seen
21 June 2013