EF 200-400mm f4L IS USM Extender 1.4x

introduced July 2013

Key features

– Built-in 1.4x extender
– Up to four-stop Image Stabilizer
– Weather-sealed, magnesium-alloy construction
 – Fast USM autofocus with Power Focus for EOS Movies
– Fluorite lens elements for optimum image quality
– Instinctive focus controls for enhanced handling
– Compatible with EF Extenders for even greater reach

Press release

The new EF 200-400mm lens offers a fixed f4 aperture, a four-stop optical image stabilizer and – for the first time in a commercially available lens – a built-in 1.4x Extender. These features combine to provide a versatile lens for professional sports or wildlife photographers.

A robust magnesium alloy design, environmental protection and specialised lens coatings combine with the high-performance optics to deliver exceptional results in even the harshest conditions.

Get closer to the action
The reach of the EF 200-400mm f4L IS USM Extender 1.4x is boosted by its internal 1.4x Extender. This is engaged or disengaged at the flick of a lever to provide an extended focal length of 280mm to 560mm in an instant.

The optical design includes both fluorite and Ultra-low Dispersion (UD) lens elements. These help to 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 f4 aperture (f5.6 with built-in Extender) the use of high shutter speeds to capture fast-paced action or a low-light scene is possible.

A newly-designed optical image stabilizer 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 over-compensating for movement. This feature is ideal for both wildlife and sports photographers, who often have only a split-second to capture a subject in front of them.

Powerful, flexible focusing
The EF 200-400mm f4L IS USM Extender 1.4x features Canon’s ring-type ultrasonic motor (USM) providing fast, silent autofocusing.

For those who prefer to fine-tune the focus themselves, full-time manual override allows photographers to manually focus at any moment when using AF.

The Power Focus (PF) mode 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 speeds, simply by twisting the focus recall ring and stopping at a pre-set distance.

High-performance design
Designed to answer professional demands for superior image quality and versatile zoom range, the EF 200-400mm f4L IS USM Extender 1.4x offers the premium quality design of Canon L-series lenses.

The tough magnesium alloy chassis ensures that, despite the inclusion of the 1.4x Extender, the lens is a similar weight to lenses of comparable focal length.

Fluorine coatings on the front and rear lens elements reduce the ability of dirt to cling to the lens surface, while a dust and water-resistant construction allows photographers to shoot in challenging weather conditions.

Canon says that the combination of outstanding optical performance, versatility, weight and tough construction will make it an essential part of any professional sports or wildlife photographer’s kitbag.

Specification

Focal length and maximum aperture: 200-400mm f4
Lens construction: 25 elements in 20 groups (33/24 with Extender)
Diagonal angle of view:
Image circle diameter:
Closest focusing distance: 2m , 0.15 x magnification (0.21 with Extender)
Filter size: 52mm drop-in
Max. Diameter x length, weight: ø 128 x 366mm, 3620g