Canon EF 70-300mm f/4.5-5.6 IS USM User manual

Instructions
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EF70-300mm f/4-5.6 IS II USM

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Thank you for purchasing a Canon product.
The Canon EF70-300mm f/4-5.6 IS II USM
is a telephoto zoom lens, for use with EOS
cameras.
 “IS” stands for Image Stabilizer.
 “USM” stands for Ultrasonic Motor.
Camera Firmware
 When using this lens, please check the Canon website
for the latest camera rmware. If the camera’s rmware
is not the latest version, be sure to update to the latest
rmware.
 For details on updating rmware, please check the
Canon website.
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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Precautions to ensure that the camera is used
safely. Read these precautions thoroughly. Make
sure all details are observed in order to prevent
risks and injury to the user and other people.
Warning Details pertaining to risks that may
result in death or serious injury.
 Do not look at the sun or a bright light source
through the lens or single-lens reflex camera.
Doing so could result in loss of vision. Looking at the
sun directly through the lens is especially hazardous.
 Do not point the lens or camera at the sun or
photograph it. This is because the lens concentrates
the sun’s rays even when the sun is outside the image
area or when shooting with backlight, which could
cause malfunction or fire.
 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 re.
Caution Details pertaining to risks that may
result in injury.
 Do not leave the camera in locations subject to
high or low temperatures. This may result in the
camera becoming excessively hot or cold, which may
cause burns or other injuries when touched.
Caution Details pertaining to risks that may
result in damage to property.
 Do not leave the lens in excessive heat such as in a
car in direct sunlight. High temperatures can cause the
lens to malfunction.
Safety Precautions

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Handling Precautions
 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, rst 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.
 Please also read any lens related handling precautions
listed in your camera’s instruction manual.
General Precautions

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Shooting Precautions
This lens uses Nano USM as the drive unit for the focus lens (the lens that aligns the focus).
The motor also controls the focus lens during zooming.
1. When the camera is OFF
The motor does not operate while the camera is OFF or when the camera is OFF due to the use of the auto
power off function. Therefore, users must be aware of the following points.
 Manual focus adjustments are not possible.
 During zooming, delayed focus will occur.
2. When the lens is in sleep mode
If not operated for a certain period of time, this lens will enter sleep mode in order to save power. Sleep mode
differs from when the camera is OFF due to the use of the auto power off function.
In this state, the motor will not operate even if the camera is ON. Therefore, users must be aware of the
following points.
 Manual focus adjustments are not possible.
 During zooming, delayed focus will occur.
 To exit sleep mode, press the shutter button halfway.
General Precautions

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When using the lens with lm single-lens reex camera
 The drive speed of the focus lens will be slower than when the lens is used with a digital camera.
 Images will appear out of focus while the camera’s internal ash is charging or when zooming during
exposure for still images.
 Even when the camera in <ON>, images may appear out of focus when zooming. If this occurs, press the
shutter button halfway while zooming.
 After focusing in AF mode or AF operation in the ONE SHOT AF mode and zooming by holding the shutter
button halfway, the camera may indicate that the AF mode has been changed to manual focus (MF) mode.
 During continuous shooting, zooming may slow down shooting speed.
 There are some cases when users must wait a few seconds after zooming before the autofocus (AF) will
function.
 When using the lens with lm single-lens reex camera other than the EOS-1V/HS, information may not be
displayed on the lens information display (p.13-17) even when pressing the shutter button down halfway or all
the way, or when pressing the display mode select button.
 When using the lens with certain lm single-lens reex cameras, displaying information on the lens
information display may cause the autofocus (AF) to stop working. In this case, please shoot after rst setting
lens information display to OFF (p.13).
General Precautions

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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 modications to the equipment
unless otherwise specied in the instructions. If such
changes or modications 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:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and
receiver.
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician
for help.
CAN ICES-3 (B) / NMB-3 (B)

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Hood mount (→ 19)
Filter mounting
thread (→ 20)
Focusing ring (→ 9)
Zoom ring lock lever
(→ 10)
Lens mount index (→ 8)
Focus mode switch (→ 9)
Image stabilizer switch (→ 11)
Zoom ring (→ 8) Zoom position index (→ 8)
Display mode select
button (→ 13)
Lens information
display (→ 13)
Contacts (→ 8)
 For detailed information, reference page numbers are provided in parentheses (→ **).
Nomenclature

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See your camera’s instructions for details on
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
ngerprints on them, corrosion or faulty
connections can result. The camera and lens
may not operate properly.
 If the contacts get soiled or have ngerprints on
them, clean them with a soft cloth.
 Attach the lens cap and dust cap when
disconnecting the lens. When attaching the
dust cap, align the lens mount index with the 
index of the dust cap and rotate in a clockwise
direction as shown in the illustration. Follow the
reverse procedure to detach it.
To zoom, turn the lens’ zoom ring.
 Be sure to nish zooming before focusing.
Zooming after focusing can affect the focus.
 Blurring may temporarily occur if the zoom ring is
quickly rotated.
 Zooming when the camera is OFF will result in
delayed focus.
 Zooming during still image exposure will result in
delayed focus. This causes any streaks of light
that are captured during exposure to be blurred.
1. Mounting and
Detaching the Lens
2. Zooming

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After autofocusing in the AF mode or AF operation
in the ONE SHOT AF mode, focus manually by
pressing the shutter button halfway and turning the
focusing ring (Full-time manual focus).
To shoot in autofocus (AF) mode, set the focus
mode switch to AF.
To use only manual focusing (MF), set the focus
mode switch to MF, and focus by turning the
focusing ring.
 Quickly rotating the focusing ring may result in
delayed focus.
 Manual focus adjustments are not possible when
the camera is OFF.
3. Setting the Focus Mode