Canon RF-S 18-150mm F3.5-6.3 IS STM User manual

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Instructions

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Thank you for purchasing a Canon product.
Canon RF-S18-150mm F3.5-6.3 IS STM is a
high magnification zoom lens for use with EOS
R series cameras* compatible with RF-S lenses.
* Images that have been cropped from the center
of the image screen will be taken when mounted
on EOS R series cameras with full-size sensors.
(Equivalent to the APS-C size)
Please refer to the camera’s instructions for details.
z“IS” stands for Image Stabilizer.
z“STM” stands for Stepping 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 firmware and
applications with the camera in use. For details on
whether the firmware and applications in use are the
latest version or not, and for details on updating them,
please check the Canon website.

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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 fire.
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.
Safety Precautions

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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, 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.
zIn order to optimize aperture control, there are
occasions in which the aperture 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.
General Precautions
Shooting Precautions
zFocus again after recovering from the auto power
off status.
zTo maintain the focus position in the shooting-ready
status, set [Auto power off] to [Disable] on the
camera.

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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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Focusing/control ring (→ 7)
Hood mount (→ 14)
Filter mounting
thread (→ 15)
Zoom ring (→ 12)
Lens mount index (→ 6)
Zoom position index (→ 12)
Contacts (→ 6)
Lens mount (→ 6)
z For detailed information, reference page numbers are provided in parentheses (→ **).
Nomenclature

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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.
1. Attaching and Detaching the Lens

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2. Focusing/control ring
The focusing/control ring can be used as either a
focusing ring or a control ring.
Focusing/control ring
Switching between the focusing ring and control
ring is performed on the camera.
This can only be used as a focusing ring on
cameras that do not support switching*.
Please refer to the camera’s instructions for
details.
* EOS R, RP, Ra, R5, R6
Use as a Focusing Ring
Set the focus mode (AF/MF) on the camera.
To shoot in autofocus (AF) mode, set the
camera’s focus mode to AF.
To use only manual focusing (MF), set the
camera’s focus mode to MF, and focus by turning
the focusing ring (focusing/control ring).
zWhen the AF does not operate after switching the
focus mode from [MF] to [AF] and when the focus
mode is not displayed on the camera’s menu, turn
the focus ring in the direction of [Infinity] until the
focusing position is within the [AF in-focus range].
• It is not possible to switch the focus mode to [AF]
if the focus lens’s focusing position is within the
[MF-only range], at which the focus can only be
aligned in the MF mode.
• Refer to 3. Taking Closeup Shots in the Manual
Focusing (MF) Mode for further details.

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Use as a Control Ring
Set the control ring function using the camera’s
menu. The control ring can be assigned the
functions that are commonly used with cameras,
such as shutter speed and aperture settings.
Please refer to the camera’s instructions for
details on how to use the control ring.
zThe lens does not have a focus mode switch or
a focusing/control selector switch.
zDelayed focus may occur if the focusing ring
(focusing/control ring) is quickly turned.
zThe lens’ focusing ring (focusing/control ring) is
electronic.
zWith a camera capable of electronic full-time
manual focus, manual focusing is possible
in both One-Shot AF and Servo AF modes.
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.
Please refer to the camera’s instructions for
details.
Focusing/control ring

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When using this lens, shots taken with the
camera’s manual focusing (MF) mode within a
range of less than 50 mm from the wide end
make the subject seem closer and larger than
with the autofocus (AF) mode.
The focusing distance ranges of the wide end
are shown below.
• AF in-focus range: 0.17 m/0.56 ft. to ∞
• MF in-focus range: 0.12 m/0.39 ft. to ∞
Focusing within a range of 0.12 m/0.39 ft. to less
than 0.17 m/0.56 ft. is possible only when using
the MF mode. (MF-only range)
zThe [AF in-focus range] and [MF in-focus range]
will differ in accordance with the focal length.
zRefer to the specifications on page 16 for details
on the range of focusing distances apart from
with wide-angle lenses.
zThe focusing distance represents the distance
between the [ ] mark (focal plane mark) on the
camera and the subject.
3.
Taking Closeup Shots in the Manual Focusing (MF) Mode
Wide-end Examples:
AF
MF
Focal plane
Subject
0.17 m/0.56 ft.
AF
0.12 m/
0.39 ft.
MF