Canon RF 50mm F1.8 STM Manuel utilisateur
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Instructions
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Thank you for purchasing a Canon product.
Canon RF50mm F1.8 STM is a standard lens
for use with EOS R series cameras.
z“STM” stands for Stepping 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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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.
zPlease also read any lens related handling
precautions listed in your camera’s instruction
manual.
General Precautions
Shooting Precautions
When the camera recovers from the auto power off
status to the shooting-ready status, the front end of
the lens moves in both AF/MF mode and an initial
reset is performed on the focus lens.
zDo not shoot until the initial reset is completed.
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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Hood mount (→ 9)
Filter mounting thread
(→ 10)
Focusing/control selector
switch (→ 7)
Lens mount index (→ 6)
Focusing/control ring (→ 7)
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.
zWhen the power switch of the camera is set
to OFF, the focus lens pushed forward is
automatically stored.* Do not detach the lens
until the lens is completely stored.
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.
* When the lens storage is set to ON on the camera.
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
Focusing/control selector switch
Use as a Focusing Ring
Set the focusing/control selector switch to
FOCUS. Set the focus mode (AF/MF) using the
camera’s menu.
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).
zThis lens does not have a focus mode switch.
zDelayed focus may occur if the focusing ring
(focusing/control ring) is quickly turned.
zDo not touch the operating part in the front of
the lens while the focus lens is operating. If
external pressure is applied to the moving part,
the lens initialization may be performed to return
the focus lens to the correct position for control
purposes.
zThe lens’ focusing ring (focusing/control ring) is
electronic.
zWhen AF operation is set to [ONE SHOT],
manual focus is possible after autofocusing
has been completed by continuing to press
the shutter button halfway. (Full-time manual
focus) However, the camera settings need to be
changed.
Please refer to the camera's instructions for
details.
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Focusing/control ring
The focusing/control ring can be used as either a
focusing ring or a control ring.
Focusing/control ring
Focusing/control selector switch
Use as a Control Ring
Set the focusing/control selector switch to
CONTROL. 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.
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The custom lens hood reduces unwanted light that causes flare and ghosting and protects the front
of the lens from rain, snow, and dust.
3. Hood (Sold separately)
Attachment position mark
Stop position mark
Attachment position mark
Red dot
Red dotRed dot
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.
Button
Detaching the Hood
Keep your finger 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.
zIn some photography conditions, it may not be possible to cut out all unwanted light with just the hood. In
that case, a board or similar can be used to shade the lens.
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.
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