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Canon lens EF 100400mm f4556L IS USM User Manual

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Page 1

EF100-400mm EF100-400mm 
f/4.5-5.6L IS USMf/4.5-5.6L IS USM
Instruction
E
EN
N G
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ENG-1
The Canon EF100–400mm f/4.5–5.6L IS USM
lens is a high-performance telephoto zoom lens
for EOS cameras.
●“IS” stands for Image Stabilizer.
● “USM” stands for Ultrasonic Motor.
Features
1. The Image Stabilizer gives the equivalent
effect of a shutter speed two stops* faster. A
second image stabilizer mode that is
optimized for continuous shooting (MODE 2)
is provided.
2. Fluorite and super UD lens elements for truly exceptional imaging capability.
3. Ultrasonic motor (USM) for fast, quiet...

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ENG-2
aSafety Precautions
energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio
communications.
However, there is no guarantee that interference will not occur in
a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of
the following measures:
• Reorient or...

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ENG-3
Nomenclature
STABILIZER
STABILIZERMODESMOOTH
TIGHT
21
6.5m
MF AF
1.8m
CANONZO OMLENSC10
0F
100
135
150
OFF
ON
For detailed information, reference page numbers are provided in
parentheses (→
**).
Hood mount
(→12)
Filter mounting
thread ( →12)
Zoom ring 
(→ 6)
Focusing ring ( →4)
Image stabilizer switch ( →7)
Image stabilizer mode selector switch ( →7)
Zoom position index
Focus mode switch ( →4)
Distance scale 
(→ 10)
Lens mount index 
(→11 )
Contacts
(→ 4)
Zoom touch adjustment ring ( →6)
Focusing...

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ENG-4
See your camera’s instructions for details on
mounting and detaching the lens.
To  shoot in autofocus (AF) mode, set the focus
mode switch to AF.
To   shoot in manual focus (MF) mode, set the
focus mode switch to MF, and focus by turning
the focusing ring. The focusing ring always
works, regardless of the focus mode.
1. Mounting and Detaching the Lens2. Setting the FocusMode
AF
MF
● After detaching the lens, place the lens with the
rear end up to prevent the lens surface and
contacts from getting...

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ENG-5
3.Switching the Focusing
Distance Range
You can set the focusing distance range to 1.8
m/5.9 ft. to infinity or 6.5 m/21.3 ft. to infinity. By
setting the suitable focusing distance range, the
actual autofocusing time will be shorter.
1.8m6.5m
If you use AF from outside the specified focusing
distance range, the lens may stop focusing when it
reaches the limit of the range. This is not a
malfunction. If this occurs, press the shutter button
halfway down again.
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ENG-6
4. Adjusting Zooming Resistance
Move the zoom ring forward or backward to
zoom.Y
ou can adjust the zoom ring “touch”
(resistance) as needed by holding the focusing
ring in place and turning the zoom touch
adjustment ring.
● Be sure to finish zooming before focusing.
Changing the zoom ring after focusing can affect
the focus.
● To   prevent unintended extension of the front of
the lens, be careful not to set the zoom ring too
loose.
T urn the zoom touch adjustment ring towards the
word SMOOTH to...

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ENG-7
STABILIZER
ON OFF
When you press the shutter
button halfway, the Image
Stabilizer will start operating. 
●Make sure the image in the
viewfinder is stable, then
press the shutter button the
rest of the way down to take
the picture.
5. Image Stabilizer
You can use the image stabilizer in AF or MF mode.
Set the STABILIZER switch
to ON.
● If you are not going to use the
image stabilizer function, set
the switch to OFF.
Select the stabilizer mode.
●MODE 1: Corrects vibrations
in all directions. It is...

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ENG-8
6. Tips on Using the Image Stabilizer
●In semi-darkened areas such as indoors or outdoors
at night.
● In locations where flash photography is prohibited,
such as art museums and theater stages.
● In situations where your footing is uncertain.
● In situations where fast shutter settings cannot be
used.
The image stabilizer in this lens is effective for hand-held shots under the following conditions.
●When panning subjects in motion.
●MODE 1 ●MODE 2
OFF
ONOFF
ON
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ENG-9
Tips on Using the Image Stabilizer
●The Image Stabilizer cannot compensate for a
blurred shot caused by a subject that moved.
● Set the STABILIZER switch to OFF when using the
camera on a tripod. If the switch is set to ON, the
Image Stabilizer may introduce errors.
● Set the STABILIZER switch to OFF when you are
taking pictures using the Bulb setting (long
exposures). If the STABILIZER switch is set to ON,
the image stabilizer function may introduce errors.
● The Image Stabilizer might not be...
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