Canon EF 200–400mm lens

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The EF 200–400mm f/4L IS USM Extender 1.4× is a EF mount super telephoto zoom lens produced by Canon. It is part of the professional L-series and functions with the Canon EOS line of cameras. The EF 200–400mm lens features an ultrasonic motor, image stabilization and weather sealing. It is the first and only EF lens with a built-in extender.


The EF 200–400mm f/4L was first announced to be in development in February 2011 and a prototype was showcased at the 2011 CP+ tradeshow.[1] In November 2011, Canon announced that availability of the lens would be postponed to an unspecified later date.[2] The lens was only released more than a year later in May 2013.[3]

Built-in 1.4× Extender[edit]

Although not the first lens to be equipped with a built-in teleconverter, an honour that belongs to the older Canon FD mount 1200mm f/5.6L 1.4× lens,[4][5] the EF 200–400 is the first to be for the EF mount, and the first to enter mass production. The extender, when engaged, increases the lens' focal length by a factor of 1.4x, while decreasing the aperture by a single stop, changing the lens to a 280–560mm f/5.6 lens. The extender is activated and deactivated by a mechanical switch close to the lens mount.


Attribute f/4L IS USM Extender 1.4x
Image Canon EF 200 400.jpg
Key features
Image stabilizer Yes (4 stops)
Environmental Sealing Yes
Ultrasonic Motor Yes
L-series Yes
Diffractive Optics No
Macro No
Built in 1.4× Extender Yes
Technical data
Maximum aperture f/4 (f/5.6 with extender)
Minimum aperture f/32 (f/45 with extender)
Horizontal viewing angle 10°–5°10' (7°20'–3°40' with extender)
Vertical viewing angle 7°–3°30' (4°55'–2°25' with extender)
Diagonal viewing angle 12°–6°10' (8°50'–4°25' with extender)
Groups/elements 20/25 (24/33 with extender)
# of diaphragm blades 9
Closest focusing distance 2.0 m (6.6 ft)
Maximum Magnification 0.15x (0.21x with extender)
Physical data
Weight 3,620 g (7.98 lb)
Maximum diameter 128 mm (5.0 in)
Length 366 mm (14.4 in)
Filter diameter 52mm drop in
Lens hood ET-120 (WII)
Lens Cap E-145C
Case 200–400
Retail information
Release date May 2013
MSRP (US$) $10999.00
Canon EF 200-400mm f/4L IS USM Extender 1.4x lens inside

See also[edit]


External links[edit]