Canon EF 400mm f/2.8L IS USM User Manual (en)

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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 for
help.
This Class B digital apparatus complies with Canadian ICES-003.
Safety Precautions
Safety 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.
02-7524_ENG  10.2.13 9:39 AM  Page 2
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