Canon RF 24-105mm F2.8 L IS USM Z User manual

ENG
Instructions

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Thank you for purchasing a Canon product.
Canon RF24-105mm F2.8 L IS USM Z is a large
aperture standard zoom lens for use with EOS R
series cameras.
z“IS” stands for Image Stabilizer.
z“USM” stands for Ultrasonic Motor.
Conventions used in these instructions
Warning to prevent lens or camera malfunction
or damage.
Supplementary notes on using the lens and
taking pictures.
Camera Firmware and
Camera Applications
Please use the latest versions of rmware and
applications with the camera in use. For details on
whether the rmware and applications in use are the
latest version or not, and for details on updating them,
please check the Canon website.
If the camera’s* rmware is not a compatible
version, the following limitations will apply.
zMagnied view functionality is not available.
zIn some cases, the camera malfunction may
occur.
* Applies to the following camera models:
EOS R and EOS RP

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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 Details pertaining to risks that may
result in death or serious injury.
zDo not look directly at the sun or other strong
light sources through a lens. This may result in
loss of sight.
zDo 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 Details pertaining to risks that may
result in injury or damage to other
objects.
zDo not leave the product in places exposed to
extremely high or low temperatures. The product
may cause burns or injury when touched.
zDo not insert your hand or fingers into the
product. This may result in injury.
zWhen using a tripod, please use one that has
sufficient strength.
zMake sure that the tripod mount knob is firmly
tightened.
zWhen carrying the lens with the tripod mount
attached, ensure that the tripod mount knob is
securely tightened, and take care when carrying.
Not doing so may result in the product falling off,
leading to damage or injury.

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General Precautions
Handling Precautions
zDo not leave the product in excessive heat such as
in a car in direct sunlight. High temperatures can
cause the product to malfunction.
zIf 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.
zIn order to optimize aperture control, there are
occasions in which the diaphragm blades will
move during zooming and focusing, even when
the aperture value is set for aperture priority AE or
manual exposure, etc.
zPlease also read any lens related handling
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 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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Nomenclature
Focusing distance range
selector switch (→ 8)
Lens function
buttons (AF stop
buttons) (→ 12)
Hood mount (→ 16)
Control ring (→ 9)
Zoom ring (→ 8)
Iris ring lock release
switch (→ 10)
Filter mounting
thread (→ 20)
Orientation locking knob
(→ 18)
Rubber ring (→ 6)
Tripod mount (→ 17)
Power zoom adapter attachment holes [PZ]
Zoom gear [PZ]
Lens mount index (→ 6)
Lens mount (→ 6)
Contacts (→ 6)
Image stabilizer switch
(→ 13)
Image stabilizer mode
selector switch (→ 13)
Tripod mount lock
release button (→ 17)
Tripod mount knob
(→ 17)
Lens holder/thumb rest
attachment holes (→ 19)
Power zoom adapter contacts [PZ]
zFor detailed information, reference page numbers are provided in parentheses (→**).
z[PZ] is a part related to the attachment of the Power Zoom Adapter (for reference, see p.20).
Focusing ring (→ 7)
Focus mode switch
(→ 7)
Iris ring (→ 10)

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Lens mount index
Lens release button Dust cap
1. Attaching and Detaching the Lens1. Attaching and Detaching the Lens
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.
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
ngerprints 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 a Canon
Service Center. (chargeable)

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2. Setting the Focus Mode
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.
zQuickly turning the focusing ring may result in
delayed focus.
zThe lens’ focusing ring is electronic.
zWith a camera capable of electronic full-time
manual focus, manual focusing is always
possible while the camera is operable.
However, this requires a change in camera
settings.
zWhen AF operation is set to One-Shot AF,
manual focus is possible after autofocusing
has been completed by continuing to press the
shutter button halfway (electronic manual focus
function). However, this requires a change in
camera settings.
zWhen movie recording, the AF speed will be
slower than the still photo shooting mode. It is
possible to adjust the AF speed on the camera
by setting Movie Servo AF to [Enable].
Please refer to the camera’s instructions for details.
Focus mode switch
Focusing ring

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4. Zooming
You can set the focusing distance range with a
switch. By setting a suitable focusing distance
range, the lens is prevented from focusing on a
subject at an unintended distance.
Focusing distance range
①FULL (0.45m-∞)
②1m-∞
To zoom, turn the lens’ zoom ring.
zBe sure to nish zooming before focusing.
Zooming after focusing can affect the focus.
zBlurring may temporarily occur if the zoom ring is
quickly turned.
3. Setting the Focusing
Distance Range
Focusing distance range selector switch

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5. Control Ring
The control ring can be assigned the functions that are commonly used with cameras, such as
shutter speed and aperture settings.
Control ring
The click action of the control ring allows you to have a sense of how much it is being turned.
Please refer to the camera’s instructions for details on how to use the control ring.
zThere are cases in which the sound of control ring operations may be recorded when shooting movies.
zThe clicking sensation of the control ring can be removed by the Canon Service Center. (chargeable)
zThe focus ring can be used as the control ring by changing the camera settings*. However, when the
focus ring is used as the control ring, the original control ring operation will be disabled. Please refer to the
camera’s instructions for details.
* Excluding EOS R, RP, Ra, R5, R5C, and R6.

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6. Manual/ Auto Aperture Operation
The aperture value can be set using the iris ring. At the time of shipment, it is set to auto aperture
operation.
Iris ring lock release switch
Iris ring
Manual aperture operation
While sliding the iris ring lock release switch
in the direction of the arrow, turn the iris ring
to match the index between 2.8 and 22.
Turn the iris ring to set the aperture.
Auto aperture operation
While sliding the iris ring lock release switch
in the direction of the arrow, turn the iris ring
to match the index with A.
Aperture is determined by the command
signal from the camera.

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Manual/ Auto Aperture Operation
zFor manual aperture operation with the Iris Ring and when shooting movies, the aperture value changes
in 1/32 steps, regardless of the camera settings. Consequently, the actual aperture value when shooting
movies may vary from the aperture value displayed on the camera.
zSome cameras *¹ *², have the following limitations.
• The iris ring cannot be used to set the aperture value when shooting still images.
• During movie shooting, when using the iris ring operation, focusing on a subject by autofocus may be
difcult. In addition, the aperture value displayed on the camera may differ from the actual aperture
value.
*1 EOS R, RP, Ra, R3, R5, R6, R6 Mark II, R7, R8, R10, R50, R100
*2 EOS R5C is limited only when shooting still images.

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7. Lens Function Buttons (AF Stop Buttons)
Use as a AF stop button
During autofocus operation, you can press an
AF stop button to temporarily pause autofocus,
and then release the button to resume.
Press an AF stop button to maintain a focusing
distance or to avoid focus search.
Press the shutter button while holding down
an AF stop button to shoot at that focusing
distance.
zUseful when autofocus is operating mostly in
Servo AF.
In the default settings, the lens function button
serves as a AF stop button. You can assign
different functions to the button from the
[Customize buttons] section of the camera.
Please refer to the camera’s instructions for
details.
Lens function
buttons (AF stop
buttons)

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8. Image Stabilizer
Image stabilization corrects vibrations that occurs with hand-held shots.
Image Stabilizer modes
zMODE 1: Corrects vibrations in all directions. It is suited to shooting still subjects.
zMODE 2: When you take a panning shot either horizontally or vertically, corrects vibrations at
right angles to the direction of panning. It is suited to shooting moving subjects.
zMODE 3: During exposure, corrects vibrations in the same way as MODE 2.
Since vibration is corrected only during exposure, It is suited to shooting irregularly
moving subjects.
Select an Image Stabilizer mode according to
the application and shooting conditions.
Set the STABILIZER switch to ON.
zThe Image Stabilizer will work in
combination with cameras with in-body
Image Stabilizer.
zIf you are not going to use image stabilization,
set the image stabilizer switch to OFF.
Image stabilizer mode selector switchImage stabilizer switch

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zIn semi-darkened areas such as indoors or
outdoors at night.
zIn locations where a ash cannot be used,
such as art museums and theater stages.
zIn situations where your footing is uncertain.
zIn situations where fast shutter speed settings
cannot be used.
MODE 1
Shooting still subjects
MODE 2
Shooting moving subjects
The Image Stabilizer for this lens is suited to hand-held shots in the following conditions.
zPanning shots of
vehicles, trains, etc.
MODE 3
Shooting irregularly moving subjects
zSports photography
of soccer, basketball,
etc.
zPhotography of
animals
Image Stabilizer

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Image Stabilizer
zThe Image Stabilizer cannot compensate for a blurred shot caused by a subject that moved.
zThe Image Stabilizer might not be fully effective in the following conditions:
• Large shake or fast vibration
• Panning in MODE 1
zWhen using a tripod, the Image Stabilizer might not be fully effective or it might be better to set the
STABILIZER switch to OFF, depending on the type of tripod and where the tripod is located, as well as on
the camera’s settings such as shutter speed.
zAlthough image stabilization will operate when using a monopod, depending on the shooting conditions,
sometimes the Image Stabilizer might not be fully effective.
zWhen movie recording, operation of the Image Stabilizer will differ.
• For cameras with in-body Image Stabilizer, vibrations are corrected in all directions, regardless of the
Image Stabilizer mode selected.
• For cameras without in-body Image Stabilizer, the Image Stabilizer will not work when the Image Stabilizer
mode is set to MODE 3.

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The custom lens hood reduces unwanted light that causes are and ghosting and protects the front
of the lens from rain, snow, and dust.
Attachment position mark
Stop position markAttachment position mark
Red dot
Red dot
Red dot
Button
zIf the hood is not attached properly, vignetting (darkening of the perimeter of the picture) may occur.
zGrasp and turn the base of the hood when attaching and detaching it. There are cases in which it may
become deformed if the hood is turned with it grasped near to the rim.
9. Hood
Attaching the Hood
Align the red attachment position mark on the
hood with the red dot on the front of the lens,
and then turn the hood in the direction of the
arrow until you hear a click.
Detaching the Hood
Keep your nger pressed down on the button
located on the side of the hood, and then turn
the hood in the direction of the arrow until the
attachment position mark on the hood is aligned
with the red dot on the front of the lens to detach
it.
The hood can be reverse-mounted on the lens
for storage.

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10. Using the Tripod Mount
A tripod or monopod attaches to the tripod
mount on the lens.
Detaching the Tripod Mount
Rotate the tripod mount knob in the direction
indicated by arrow ①.
While pressing the tripod mount lock release
button, slide the tripod mount in the direction
of arrow ③to remove it.
Attaching the Tripod Mount
Slide the tripod mount in the direction
indicated by arrow ④until you hear a click.
Rotate the tripod mount knob in the direction
indicated by arrow ②until it stops moving.
Once the tripod mount knob stops moving,
please attempt to rmly tighten it again.
zWhen attaching the tripod mount, rmly tighten
the tripod mount knob so that the tripod mount
is mounted securely to the lens. The lens may
fall from the tripod mount if the tripod mount
knob is not fully tightened.
zNot attaching the tripod mount securely may
result in blurred images even when using a
tripod or monopod during shooting.
zPlease attach the tripod mount in the direction
as shown in the illustration. It is not possible to
attach the tripod mount while positioned in any
other direction.
1
2
3 4
Tripod mount attachment foot
Tripod mount knob
Tripod mount lock release button
Tripod mount

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Using the Tripod Mount
Adjusting the Tripod Mount
By loosening the orientation locking knob, you
can rotate the camera to set the image for any
vertical or horizontal position.

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11. Lens holder LH-E1 (sold separately)
For stable shooting, using the Canon lens holder LH-E1 (sold separately) attached to the lens and
xed to the rig (rod) is recommended.
Attaching the lens holder
Use the hex key to attach the lens holder to the lens holder/thumb rest attachment holes.
Attach the lens to the camera.
Attach the commercially available rig (rod) to the rig (rod) attachment hole of the lens holder. For
procedures to attach the rig (rod), refer to the operation manual of the rig (rod).
zRemove the lens holder by performing the procedures in the reverse order.
zBe sure to remove the lens from the camera before attaching or detaching the lens holder to the lens.
Lens holder/thumb rest
attachment holes
Hole to attach the rig (rod)
Lens holder