Canon RF Instruction Manual

Instructions

ENG

Thank you for purchasing a Canon product.

Canon RF100mm F2.8 L MACRO IS USM
is a macro lens for use with EOS R series
cameras.

z “IS” stands for Image Stabilizer.
z “USM” stands for Ultrasonic Motor.

Camera Firmware

Please use the latest version of firmware with the
camera in use. For details on whether the firmware is
the latest version or not, and for details on updating
the firmware, 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.

Warning

Do not look directly at the sun or other strong

z

light sources through a lens. This may result in
loss of sight.

Do not leave a lens in the sun without the lens

z

cap attached. The lens may concentrate entering
sunlight and cause a malfunction or fire.

Details pertaining to risks that may
result in death or serious injury.

Caution

Do not leave the product in places exposed to

z

extremely high or low temperatures. The product
may cause burns or injury when touched.

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

z

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

z

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.
The lens interior may appear to waver, but this

z

does not indicate a defect or failure, and will not
cause any problems in use.
In order to optimize aperture control, there are

z

occasions in which the aperture blades will move
during focusing, even when the aperture value is
set for aperture-priority AE or manual exposure,
etc.
Please also read any lens related handling

z

precautions listed in your camera’s instruction
manual.

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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 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:

• 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

Focusing ring (→ 7)

Control ring (→ 8)

Hood mount (→ 15)

Filter mounting thread

(→ 18)

Tripod mounting location (→ 17)

Tripod mount adapter groove (→ 16)

Focusing distance range selector switch (→ 7)

Focus mode switch (→ 7)

SA control ring (→ 9)

SA control ring lock

switch (→ 9)

Rubber ring (→ 6)

Contacts (→ 6)

Lens mount (→ 6)

Lens mount index (→ 6)

Image stabilizer switch (→ 11)

z For detailed information, reference page numbers are provided in parentheses (→ **).

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1.

Attaching and Detaching the Lens

Lens mount index

Lens release button Dust cap

Attaching the Lens

Align the lens mount indexes of the lens and
camera, and turn the lens clockwise until you
hear a click.

Detaching the Lens

Turn the lens counterclockwise while pressing
the camera’s lens release button. Detach the
lens once it has stopped turning.

Please refer to the camera’s instructions for
details.

zSet the camera’s power switch to OFF when

attaching or detaching the lens.

zAttach the lens cap before detaching the lens

from the camera.

zAfter detaching the lens, place the lens with the

rear end up and attach the dust cap to prevent
the lens surface and contacts from getting
scratched. Make sure the lens and dust cap
mount indexes are aligned when attaching the
dust cap.

zContacts that are scratched, soiled, or have

fingerprints on them may result in faulty
connections or corrosion, which may lead to
malfunctions. If the contacts get soiled, clean
them with a soft cloth.

zThe lens mount has a rubber ring to improve

dust-resistance and water-resistance
performance. This rubber ring may cause
friction marks to appear around the camera’s
lens mount, although this will have no effect on
usage.

zRubber rings can be replaced at Canon Service

Center. (chargeable)

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