Canon EF 200-400mm f4L IS USM Extender 1.4x - Manual (Page 2)

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Thank you for purchasing a Canon product.
Equipped with a 1.4x internal extender and Image
Stabilizer, the Canon EF200-400mm f/4L IS USM
Extender 1.4x is a high-performance telephoto
zoom lens, for use with EOS cameras.
● ● “IS” stands for Image Stabilizer.
● ● “USM” stands for Ultrasonic Motor.
Features
1. Equipped with an internal 1.4x extender. (The
extender switch lever allows you to change the
focal distance of the lens to either 1x or 1.4x.)
2. Equipped with an Image Stabilizer that provides an
image stabilization effect equivalent to a shutter speed
4 stops* faster (internal extender set to 1.4x, telephoto
end at 560mm, when used with the EOS-1D X).
Also, a third Image Stabilizer mode effective for
shooting irregularly moving subjects.
3. Use of fluorite and UD lens elements giving
superior definition.
4. SWC (Subwavelength Structure Coating)
reduces flare and ghosting.
5. Using a fluorine coating on the foremost and
rearmost lens surfaces allows adhered dirt to be
removed more easily than before.
6. Ultrasonic motor (USM) for fast, quiet autofocus.
7. Manual focusing is available after the subject comes
into focus in autofocus mode (ONE SHOT AF).
8. An AF stop button to pause autofocus whenever
desired.
9. A power focus mode enables smooth focus change.
10. A focus preset function for advance storage
of focusing positions in memory to allow
instantaneous focusing.
11. Circular aperture for producing beautiful
softfocus images.
12. Can be used with EF1.4x III/EF2x III extenders.
13. Attachment slot provided for wire-type security
lock, located under the cover for the orientation
locking knob.
14. Tight seal structure ensures excellent dustproof
and drip-proof performance.
15. Designed for lighter weight with parts made of
magnesium alloy.
* Image stabilization performance based on CIPA
(Camera & Imaging Products Association) Standards.
During actual shooting, image stabilization
performance varies depending on the amount of
camera shake, shooting conditions, and other factors.
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