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The Canon EF 200-400mm f/4L IS II USM 1.4x is a high-magnification, versatile super-telephoto zoom lens featuring integrated Image Stabilizer technology, fast f/4 maximum aperture* and a built in 1.4x extender (*the maximum aperture becomes f/5.6 when the 1.4x range extender is deployed). These features combine to provide an outstandingly versatile lens for professional sports or wildlife photographers as well as broadcast film and television documentary applications.

A robust magnesium alloy design, environmental protection and specialised lens coatings also make it ideal for mobile use, combining with the finest quality optics to deliver exceptional results, even in the most harsh conditions.

Get closer to the action with superior image quality
The reach of the EF 200-400mm f/4L IS USM Extender 1.4x is boosted by its internal 1.4x extender, which is engaged or disengaged at the flick of a lever to provide an extended focal length of 280mm to 560mm – allowing photographers to get even closer to distant action. Ensuring the highest image performance, the optical design includes both fluorite and Ultra-low Dispersion (UD) lens elements, which help minimise chromatic aberration and eliminate colour blurring. Advanced anti-reflection SubWavelength Structure Coating (SWC) and Super Spectra Coating also reduce ghosting and flare. Thanks to the use of the latest optical technologies, image performance is unaffected when the integrated extender is used.

With a fixed f/4¹ aperture the use of high shutter speeds to capture fast-paced action or a low-light scene is possible. A newly designed optical Image Stabilizer, which provides users with a four stop advantage, while IS ‘Mode 3’ applies image stabilisation only at the time of exposure – ensuring that photographers can pan with fast-paced action without IS overcompensating for movement. This feature is ideal for sports photographers, who typically have only a split-second to capture a subject in front of them.

Powerful, flexible focusing
The EF 200-400mm f/4L IS USM Extender 1.4x features Canon’s pioneering ring-type Ultrasonic Motor providing fast, silent autofocusing. For those who prefer to fine-tune focus themselves, full-time manual override allows photographers to manually focus at any moment when using AF. The Power Focus (PF) mode also increases versatility during movie shooting with the EOS-1D C or EOS-1D X, enabling photographers to achieve an accurate pull-focus effect at one of two

• High-performance 200-400mm lens
• Built in 1.4x Extender
• Fluorite and UD elements
• Fast f/4 max aperture
• Ring-type USM for fast AF
• 4-stop Image Stabilizer
• Protective fluorine coating on front and rear elements
• 2.0m min focus distance with extender enabled
• 9 blade aperture
• Power focus for video
• Dust and moisture resistant

Angle of view (horzntl, vertl, diagnl) 10° – 5°10′, 7° – 3°30′, 12° – 6°10′
with extender 7° 20′- 3°40′, 4° 55′- 2°25′,8° 50′ – 4°25′
Lens construction (elements/groups) 25/20 (33/24 with extender)
No. of diaphragm blades 9
Minimum aperture 32(45 with extender)¹
Closest focusing distance (m) 2
Maximum magnification (x) 0.15 (0.21 with extender)
Distance Information Provided
Image stabilizer 4-stops
AF actuator Ring USM²
PHYSICAL SPECIFICATIONS
Dust/moisture resistance* Yes
Filter diameter (mm) 52 drop in
Max. diameter x length (mm) 128×366
Weight (g) 3620
ACCESSORIES
Lens Cap E-145C
Lens hood ET-120 (WII)
Lens case/pouch 200-400
Magnification w/ Extension Tube EF12 II 0.20-0.03 (0.36- 0.02 with extender)
Magnification w/ Extension Tube EF25 II 0.26-0.07 (0.52- 0.05 with extender)
Extender Compatiblity Compatible
Other Accessories Lens wide strap B
SPECIFICATIONS WITH EF 1.4X III
Focal Length 280-560 (392-784 with built in extender)
Maximum Aperture 5.6-45¹ (8-64 with built in extender)
Maximum Magnification 0.21
AF Possible Yes²
IS Yes³
SPECIFICATIONS WITH EF 2X III
Focal Length 400-800 (560 -1120 with built in extender)
Maximum Aperture 8-64 (11 -91 with built in extender)
Maximum Magnification 0.31
AF Possible Yes² (No with built in extender)
IS Yes³
Minimum aperture ¹ Minimum aperture if using 1/3stop
increments
AF actuator ² Full time Manual focus
AF Possible ² AF only possible with EOS-1 series Cameras and 5D Mark III with Firmware update
IS ³ IS will not work with EOS film cameras with the exception of the EOS-1v when used with Mark III Extenders