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© 2023.07 CANON INC.
BT1-D002-D-ENG
CANON INC.
30-2, Shimomaruko 3-chome, Ohta-ku, Tokyo 146-8501, Japan
GENERAL SAFETY INFORMATION
The safety warnings and cautions provided on the product or in this operation manual must be observed. Failure
to observe these warnings and cautions may result in injury or accident. Read this operation manual carefully to
familiarize yourself with its contents and ensure that you can operate the product properly.
Also, store this manual in a safe place where it can easily be referenced whenever necessary.
This operation manual uses the following symbols and terms to identify hazards in order to prevent accidents.
WARNING
This indicates a potentially hazardous situation which, if not heeded, may result in death
or serious injury to you or others. Be sure to heed all warning notices to ensure safe
operation at all times.
CAUTION
This indicates a potentially hazardous situation which, if not heeded, may result in a mi-
nor injury to you or others, or damage to property. Be sure to heed all caution notices to
ensure safe operation at all times.
NOTE
This indicates cautions and recommendations for operation. It contains information
which, if not heeded, may result in this product failing to function properly. These no-
tices also contain useful information for operation.
HANDLING THE PRODUCT
WARNING
Do not stare at the sun or other bright objects through the lens. It may injure your eyes.
CAUTION
1. Ensure that all mountings are securely tightened. If a mounting becomes loose, parts may fall off and cause
injury.
2. Inspect mountings regularly (about every six months to one year) to ensure they are securely tightened. If a
mounting becomes loose, parts may fall off and cause injury.
NOTE
1. Do not expose the lens to strong impact. Striking or dropping the lens may cause the malfunction of the
product.
2. This product is not waterproof. Take measures to avoid direct contact with rain, snow, or moisture. Otherwise
it may cause the malfuction of the product.
3. Take measures to avoid sudden changes in temperature where the lens is used, which may prevent
operation temporarily if condensation forms in the lens.
DEALING WITH ABNORMALITIES
WARNING
If any of the following situations occurs, immediately dismount the lens from the camera and contact your
Canon sales representative or dealer.
• Smoke, fumes, or unusual noises
• Entry of foreign objects (such as liquid or metal objects) inside the product
MAINTENANCE AND INSPECTION
NOTE
1. Clean off any dust on the lens surface using a lens blower or a soft lens brush. In case of getting fingerprints or
stains on the lens, use a clean cotton cloth moistened with commercial lens cleaning fluid, or use lens cleaning
paper. Gently wipe in a spiral pattern from the center of the lens. Be careful not to rub dust across the lens,
which may scratch the lens surface.
2. Routine inspection about once a year is recommended, depending on the conditions and environment of use.
Request overhaul, if needed.
STORAGE
WARNING
Always attach the lens cap, hood cap, dust cap or covers before storage. Storing the lens without the caps or
covers attached poses a risk of fire if the lens concentrate light in direct sunlight.
NOTE
Immediately wipe off any moisture on the lens from misty or foggy environments, using a dry cloth. Seal the
lens in a plastic bag with a desiccant (preferably new) to prevent moisture inside. Otherwise it may cause the
mold or the malfunction of the product.
TO THE CUSTOMER
1. Canon shall bear no responsibility for damage resulting from improper operation of this product by the
customer.
2. Canon shall make no guarantees about the product quality, functions, or operation manual and its marketability
and suitability for the customer’s purpose. Moreover, Canon shall bear no responsibility for any damage, direct
or incidental, that results from usage for the customer’s purpose.
3. The product specifications, configuration, and appearance are subject to change without prior notice.
4. For further information on repairs, maintenance, or adjustments not mentioned in this operation manual, contact
your Canon sales representative or dealer.
5. Note that Canon may be unable to undertake servicing or repair of a product if it is modified without consulting
Canon or your Canon sales representative.
All rights reserved. No part of this operation
manual may be reproduced or copied in any
from or by any means without the written
permission of Canon Inc.
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