Canon lens EF 300mm f28L IS USM User Manual

							EF300mm f/2.8L IS USMEF300mm f/2.8L IS USM
EF400mm f/2.8L IS USMEF400mm f/2.8L IS USM
EF500mm f/4L IS USMEF500mm f/4L IS USM
EF600mm f/4L IS USMEF600mm f/4L IS USM
Instructions
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Thank you for purchasing a Canon product.
Canon’s EF300mm f/2.8L IS USM, EF400mm f/2.8L
IS USM, EF500mm f/4L IS USM and EF600mm
f/4L IS USM are high-performance super-telephoto
lenses, for use with EOS cameras. 
●“IS” stands for Image Stabilizer.
● “USM” stands for Ultrasonic Motor.
Handling Cautions●If the lens is taken from a cold environment into a
warm one, condensation may develop on the lens
surface and internal parts. To  prevent condensation
in this case, first put the lens into an airtight plastic bag
before taking it from a cold to warm environment. Then
take out the lens after it has warmed gradually. Do the
same when taking the lens from a warm environment
into a cold one.
Do not stand on top of the lens case. You may fall and
injure yourself. 
Do not pile lens cases on top of one another as they
may fall and cause injury.
● Do not leave the lens in excessive heat such as in a
car in direct sunlight.  High temperatures can cause
the lens to malfunction.
Features1. The Image Stabilizer gives the equivalent effect
of a shutter speed two stops* faster.
2. Use of fluorite and UD lens elements giving superior definition.
3. Ultrasonic motor (USM) for fast, quiet autofocus.
4. Manual focusing is available after the subject comes into focus in autofocus mode (ONE SHOT
AF).
5. An AF stop button to pause autofocus whenever desired.
6. Can be used with EF1.4 ×II/EF2 ×II extenders.
7. A focus preset function for advance storage of focusing positions in memory to allow
instantaneous focusing.
8. Tight seal structure ensures excellent dustproof and drip-proof performance.
9. Designed for lighter weight with parts made of magnesium alloy.
*Based on [1/focal length] second. 
Generally, it requires a shutter speed [1/focal length]
second or faster to prevent camera shake.
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• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Consult the dealer or an experienced radio/TV technician forhelp.
This Class B digital apparatus complies with Canadian ICES-003.
a Safety Precautions
aSafety Precautions
●Do not look at the sun or a bright light source
through the lens or camera. Doing so could result in
loss of vision. Looking at the sun directly through the
lens is especially hazardous. 
●Whether it is attached to the camera or not, do not
leave the lens under the sun without the lens cap
attached. This is to prevent the lens from concentrating
the sun’s rays, which could cause a fire.
This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause
undesired operation.
Do not make any changes or modifications to the equipment
unless otherwise specified in the instructions. If such changes or
modifications should be made, you could be required to stop
operation of the equipment.
This equipment has been tested and found to comply with the limits
for a class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency 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:
Attaching the strap
Thread the end of the strap through the strap mount on
the lens and then back through the clasp on the strap.
Pull the strap tight and check that there is no slack in
the clasp.
C
Conventions used in this instruction
Warning to prevent lens or camera malfunction
or damage.
Supplementary notes on using the lens and
taking pictures.
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Nomenclature
2.5m
AFMF
2.5m 6.4m
6.4m
STABILIZER
STABILIZER
SETMODEFOCUS PRESET1 2
CANON LENS CANONLENS EF 3220
10703032300mm 1:2.8L IS UMADE INJAPAN
OFFON
Distance scale ( →8, 13)
Orientation locking knob (→ 14)
Strap mount (→2)
Focus mode switch ( →5)
Contacts (→ 4)
Lens mount index (→ 14)
Drop-in filter (→16)
Image stabilizer mode selector switch (→ 9)
Focus preset switch (→7)
Focusing distance range selector switch (→ 5)
Tripod mount ( →14)Focus preset button ( →7)
Image stabilizer switch (→ 9)
Rubber ring (→4)
AF stop button
(→ 6)
Hood mount (→ 15)
Playback ring 
(→ 8)
Focusing ring ( →5)
●The illustrations used in the explanations in this manual show the EF300\
mm f/2.8L IS USM, but
the EF400mm f/2.8L IS USM, the EF500mm f/4L IS USM, and the EF600mm f/4L IS USM are all
used in the same way.
● For detailed information, reference page numbers are provided in parenth\
eses ( → **).
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See your camera’s instructions for details on
mounting and detaching the lens.
1. Mounting and Detaching the Lens
●
After detaching the lens, place the lens with the
rear end up to prevent the lens surface and
contacts from getting scratched.
● If the contacts get soiled, scratched, or have
fingerprints on them, corrosion or faulty
connections can result. The camera and lens
may not operate properly. 
● If the contacts get soiled or have fingerprints on
them, clean them with a soft cloth.
● If you remove the lens, cover it with the dust
cap. To attach it properly, align the lens mount
index and the  
index of the dust cap as shown
in the diagram, and turn clockwise. To remove it,
reverse the order.
The lens mount has a rubber ring for enhanced
dust- and water-resistance. The rubber ring may
cause slight abrasions around the camera’s lens
mount, but this will not cause any problems. If the
rubber ring becomes worn, it is replaceable by a
Canon Service Center at cost.
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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.
2. Setting the Focus Mode3.Switching the Focusing
Distance Range
You can set the focusing distance range with a
switch. By setting a suitable focusing distance
range, the actual autofocusing time will be shorter.
2.5m
AF MF
2.5m 6.4m
6.4m
Lens Ranges2.5 m/8.2 ft. – ∞EF300mm f/2.8L IS USM 2.5 m/8.2 ft. – 6.4 m/21.0 ft.6.4 m/21.0 ft. –  ∞3 m/9.8 ft. – ∞EF400mm f/2.8L IS USM 3 m/9.8 ft. – 10 m/32.8 ft.10 m/32.8 ft. –  ∞4.5 m/14.8 ft. –  ∞EF500mm f/4L IS USM 4.5 m/14.8 ft. – 10 m/32.8 ft.10 m/32.8 ft. – ∞5.5 m/18.0 ft. –  ∞EF600mm f/4L IS USM5.5 m/18.0 ft. – 16.2 m/53.2 ft.16.2 m/53.2 ft. –  ∞
AF
STABILIZER
MF
STABILIZER
ON OFF
After autofocusing in ONE SHOT AF mode, focus
manually by pressing the shutter button halfway
and turning the focusing ring. (Full-time manual
focus)
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Switching the Focusing Distance RangeAF Stop Button
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.
4. AF Stop Button
During autofocus operation, you can press the
AF stop button to temporarily pause autofocus.
If the shutter button is still pressed halfway
when the AF stop button is released,
autofocusing will continue as before.
●With the EOS 630/600, RT, A2/A2E/5, or 10S/10
set to the AI Servo AF mode and continuous
shooting, AF will not resume even after you let
go of the AF stop button. Press the shutter
release button halfway to resume AF.
● With the EOS A2/A2E/5 and 10S/10 set to the
Sports mode, AF will not resume even after you
let go of the AF stop button. Press the shutter
release button halfway to resume AF.
● You can change the functions of the AF stop
button using the camera’s Custom Function. For
details, please refer to the camera’s instructions.
The AF stop function also works in AI Servo AF
mode.
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5. Focus Preset
By presetting any focusing distance, you can instantly focus at that poi\
nt even while you are
shooting a different subject. This function operates in both the AF and MF modes.
< How to Set >Press the focus preset
button.
●The focused distance will be
preset.
● If the focus preset switch was
set to      , the beeper will
sound once.
Press the shutter button
halfway to focus the
distance you want to preset.
Set the focus preset switch
to    or     .
STABILIZER
SET
MODE
FOCUS PRESET
12STABILIZER
SET
MODE
FOCUS PRESET
12
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Focus Preset
●When turning the playback ring, keep your finger
away from the shutter button. In One-Shot AF
mode, the exposure will be locked when you
press the shutter button halfway and focus is
achieved. So if you press the shutter button
halfway while turning the playback ring, the
exposure may not be correct.
● When not using the focus preset, set the switch
to      .
While turning the playback ring
to the left or right, press the
shutter button completely.
●The lens will focus at the preset
distance.
● If the focus preset switch was
set to      , the beeper will sound
twice.
< How to Focus at the Preset Distance >
In the following cases, the focusing distance scale
will move slightly. It will not affect the image.
• When you press the focus preset button.
• When you turn the playback ring.
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STABILIZER
STABILIZER MODE
12
STABILIZER
ON OFF
Press the shutter button
down halfway to enable
stabilization.
● Make sure the image in the
viewfinder is stable, then
press the shutter button the
rest of the way down to take
the picture.
6. 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 mainly
effective for shooting still
subjects.
● MODE 2: Corrects vertical
camera shake during
following shots in a horizontal
direction, and corrects
horizontal camera shake
during following shots in a
vertical direction.
STABILIZER
MODE
FOCUS PRESET
12
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