Canon EF 70-300mm f/4-5.6 IS II USM User Guide
EF70-300mm f/4-5.6 IS II USM
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Instructions
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
Please use the latest version of rmware with the camera
in use. For details on whether the rmware is the latest
version or not, and for details on updating the rmware,
please check the Canon website.
Conventions used in these instructions
Warning to prevent lens or camera malfunction
or damage.
Supplementary notes on using the lens and
taking pictures.
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Safety Precautions
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.
Details pertaining to risks that may
Warning
Do not look directly at the sun or other strong light
sources through a lens. This may result in loss of
sight.
Do not leave a lens in the sun without the lens cap
attached. The lens may concentrate entering sunlight
and cause a malfunction or re.
Caution
Do not leave the product in places exposed to
extremely high or low temperatures. The product
may cause burns or injury when touched.
result in death or serious injury.
Details pertaining to risks that may
result in injury or damage to other
objects.
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General Precautions
Handling Precautions
Do not leave the product in excessive heat such as in
a car in direct sunlight. High temperatures can cause
the product to malfunction.
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.
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General Precautions
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.
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General Precautions
When using the lens with lm single-lens reex 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 reex 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 reex 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).
When using the lens with certain lm single-lens reex cameras, operating the power switch between ON
and OFF with the lens attached to the cameras may cause the autofocus (AF) and manual focus (MF) to stop
working. In this case, please reattach the lens with the power switched <ON>.
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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 modications to the equipment
unless otherwise specied in the instructions. If such
changes or modications 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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Nomenclature
Zoom ring (→ 8) Zoom position index (→ 8)
Hood mount (→ 19)
Filter mounting
thread (→ 20)
Focusing ring (→ 9)
Focus mode switch (→ 9)
Image stabilizer switch (→ 11)
For detailed information, reference page numbers are provided in parentheses (→ **).
Display mode select
button (→ 13)
Lens information
display (→ 13)
Contacts (→ 8)
Lens mount index (→ 8)
Zoom ring lock lever
(→ 10)
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