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Instructions
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Thank you for purchasing a Canon product.
Canon RF200-800mm F6.3-9 IS USM is a
telephoto zoom lens for use with EOS R series
cameras.
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“IS” stands for Image Stabilizer.
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“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
Details pertaining to risks that may
result in death or serious injury.
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Do not look directly at the sun or other strong
light sources through a lens. This may result in
loss of sight.
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Do not point the lens or camera at the sun
or photograph it. This is because the lens
concentrates the sun’s rays even when the sun
is outside the image area or when shooting with
backlight, which could cause malfunction or fire.
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Do not leave a lens in the sun without the lens
cap attached. The lens may concentrate entering
sunlight and cause a malfunction or fire.
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Where the lens is mounted on a camera, make
sure to properly support the lens. If you hold only
the camera, the lens may fall off the camera and
cause a malfunction or injury.
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Be sure to attach the included strap to the lens
when carrying a camera around with the lens
mounted on it. Using the strap for the camera may
allow the lens to fall off the camera and cause a
malfunction or injury.
Caution
Details pertaining to risks that may
result in injury or damage to other
objects.
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Do not leave the product in places exposed to
extremely high or low temperatures. The product
may cause burns or injury when touched.
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Do not insert your hand or fingers into the
product. This may result in injury.
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Attach a tripod or monopod that is sufficiently
sturdy to the tripod mount on the lens.
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Handling Precautions
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Do not leave the product in excessive heat such as
in a car in direct sunlight. High temperatures can
cause the product to malfunction.
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If 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.
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The lens interior may appear to waver, but this
does not indicate a defect or failure, and will not
cause any problems in use.
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In 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.
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Please also read any lens related handling
precautions listed in your camera’s instruction
manual.
General Precautions
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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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Fordetailedinformation,referencepagenumbersareprovidedinparentheses(→**).
Nomenclature
Filter mounting thread
(→18)
Focus mode/control
selector switch (→8)
Image stabilizer
switch (→13)
Strap mount (→7)
Hood mount
(→15)
Zoom ring (→10,11)
Focusing/control ring (→8)
Contacts (→6)
Rubber ring (→6)
Lens mount (→6)
Lens mount index (→6)
Orientation locking knob (→16)
Tripod mount (→16)
Zoom position index (→10)
Lens Function Buttons
(AF Stop Buttons) (→12)
Adjustment ring (→11)
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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.
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Set the camera’s power switch to OFF when
attaching or detaching the lens.
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After 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.
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Contacts 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.
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The 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.
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Since the lens is heavier than the camera, turn
the camera when attaching or detaching the
lens. Ensuring that the lens can rest safely on its
own is recommended, such as first mounting it
on a tripod.
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Rubber rings can be replaced at a Canon
Service Center. (chargeable)
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2. Attaching the Strap
Thread the end of the strap through the strap
mount on the lens and then back through the
clasp on the strap. Pull the strap tight and check
that there is no slack in the clasp.
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Before using the lens, check that the strap is
attached securely, that it is not worn (damaged),
etc.
Strap mount
Included strap
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3. Focusing/Control ring
The focusing/control ring can be used as either a
focusing ring or a control ring.
Focusing/Control ring
Focus mode/control selector switch
Use as a Focusing Ring
Set the focus mode/control selector switch to AF
or MF.
To shoot in autofocus (AF) mode, set the focus
mode/controlselectorswitchtoAF.Table*1
To use only manual focusing (MF), set the focus
mode/control selector switch to MF, and focus by
turning the focusing ring (focusing/control ring).
Table*2
Table: List of Focus Mode and Focusing/Control
Ring Functions Using the Focus Mode/
Control Selector Switch
Focus mode/
Control selector switch
*1AF *3CONTROL *2MF
Focus mode AF *4AF/*5MF MF
Focusing/
control ring
functions
Focusing ring
Control ring
Focusing ring
Use as a Control Ring
Set the focus mode/control selector switch to
CONTROL.Table*3
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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Delayed focus may occur if the focusing ring
(focusing/control ring) is quickly turned.
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Setting the focus mode/control selector switch to
CONTROLwillfixthefocusmodeasAF.Table*4
However, depending on the camera used, it is
possible to switch the focus mode to MF on the
camera.Table*5
Please refer to the camera’s instructions for
details.
Focusing/Control ring
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The lens’ focusing ring (focusing/control ring) is
electronic.
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With a camera capable of electronic full-time
manual focus, manual focusing is possible while
the camera is operable. However, this requires a
change in camera settings.
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When 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.
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When 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.
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4.
Zooming
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Mark Ⅱ
To zoom, turn the zoom ring.
Minimum focusing distance: changes
according to the focal length.
Focal length
Minimum
focusing distance
Magnification
200 mm 0.8 m / 2.62 ft. 0.25x
400 mm 1.8 m / 5.91 ft. 0.19x
600 mm 2.8 m / 9.19 ft. 0.18x
800 mm 3.3 m / 10.83 ft. 0.2x
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Be sure to finish zooming before focusing.
Zooming after focusing can affect the focus.
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Once a close-up subject is in focus, zooming
may cause the subject to come out of focus.
In this instance, move back from the subject and
refocus.
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Blurring may temporarily occur if the zoom ring
is quickly turned.
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Please be careful not to let your fingers get
caught in between the lens portion that extends
and the lens body when zooming.
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5.
Adjusting the Zoom Ring Operational Feeling
Adjustment ring
You can adjust the operational feeling (weight
of movement) of the zoom ring to a preferred
level. Turn the adjustment ring toward SMOOTH
to lighten the feeling, and toward TIGHT to
strengthen it.
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It is recommended that the adjustment ring is
turned fully to the TIGHT setting when not in
use to prevent the front of the lens from being
unintentionally extended.
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If the lens is aimed upward or downward in the
TELE setting with the adjustment ring set at
SMOOTH, there are cases in which the lens will
contract to the WIDE setting. Please be careful
not to let your fingers get caught in between the
zoom extending portion and the lens body.
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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.
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Useful 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.
6.
Lens Function Buttons (AF Stop Buttons)
Lens function buttons
(AF stop buttons)
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7.
Image Stabilizer
Image stabilizer switch
Set the image stabilizer switch to ON when you
want to use the Image Stabilizer.
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This function provides image stabilization
appropriate for shooting conditions (such as
shooting still subjects and panning shots).
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The coordinated control will work in
combination with cameras with in-body Image
Stabilizer.
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Set the image stabilizer switch to OFF when
you are not going to use the Image Stabilizer.
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The Image Stabilizer cannot compensate for a
blurred shot caused by a subject that moved.
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The Image Stabilizer may not be fully effective
if you shoot from a violently shaking vehicle or
other transportation.
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If using a camera that allows you to change
the shutter mode setting, [Elec. 1st-curtain] or
[Electronic]settingsisrecommended*toallow
the Image Stabilizer to be fully effective.
* WhenusinganEOSRcamera,selecteither
[Mode 1] (default factory setting) or [Mode
2] in the [Silent LV shoot.] settings, or select
[Enable] in the [Silent shutter] settings.
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When 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.
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Even with a monopod, the Image Stabilizer will
be as effective as during hand-held shooting.
However, depending on the shooting conditions,
there are cases in which the Image Stabilizer
effect may be less effective.
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The Image Stabilizer for this lens is suited to hand-held shots in the following conditions.
Image Stabilizer
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In semi-darkened areas such as indoors or
outdoors at night.
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In locations where the flash cannot be used,
such as art museums and theater stages.
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In situations where your footing is uncertain.
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In situations where fast shutter speed settings
cannot be used.
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Panning shots of vehicles, trains, etc.
It compensates for vertical camera shake during panning shots in a
horizontal direction, and compensates for horizontal camera shake
during panning shots in a vertical direction.
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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.
8.
Hood
Attachment position mark
Stop position markAttachment position mark
Red dot
Red dot
Red 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.
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If the hood is not attached properly, vignetting (darkening of the perimeter of the picture) may occur.
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Grasp 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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9.
Tripod Mount
A tripod or monopod attaches to the tripod
mount on the lens.
Switching the Orientation of the Image
By loosening the orientation locking knob on the
tripod mount you can rotate the camera and the
lens to switch the image in any orientation
(vertical, horizontal, etc.).
Make sure that the orientation locking knob is
tightened after setting the camera in place.
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Since this lens has a long focal length and even
a slight tilt is noticeable, use the camera’s built-in
electronic level to correctly create a level view.
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Use an extender RF1.4× or RF2× to shoot a larger image of a subject. Lens specifications when
using an extender are as follows.
RF1.4x WIDE TELE RF2x WIDE TELE
Focal length (mm) 280 1120 Focal length (mm) 400 1600
Aperture f/9-45 f/13-72 Aperture f/13-64 f/18-91
Angle of view
Horizontal 7°20’ 1°50’
Angle of view
Horizontal 5°10’ 1°20’
Vertical 4°55’ 1°10’ Vertical 3°30’ 50’
Diagonal 8°50’ 2°10’ Diagonal 6°10’ 1°30’
Maximum magnification (x) 0.37 0.28 Maximum magnification (x) 0.54 0.41
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Attach the extender to the lens, and then attach the lens to the camera. To detach it, reverse the order.
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Extenders cannot be used more than one at a time.
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The available autofocus range for this lens will differ depending on the combination of camera and extender
in use.
Please check the Canon website for further details.
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When an extender is attached, the AF speed will become slower to retain proper control.
10.
Extenders (Sold separately)
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11.
Filters (Sold separately)
You can attach filters (ø95) to the filter mounting
thread on the front of the lens.
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Only one filter may be attached.
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If you need a polarizing filter, use the Canon
Circular Polarizing Filter PL-C B.
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Detach the hood when adjusting the polarizing
filter.
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Specifications
Focal Length/Aperture 200 - 800mm f/6.3 - 9
Lens Construction 11 groups, 17 elements
Maximum Aperture f/6.3 - 9
Minimum Aperture f/32 - 51
Angle of View Horizontal: 10° - 2°35’, Vertical: 7° - 1°40’, Diagonal: 12° - 3°05’
Min. Focusing Distance 0.8m/2.62ft.(at200mm)*
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Max. Magnification 0.25x (at 200 mm)
Field of View Approx.135x90(at200mm)-Approx.192x128mm(at550mm)*
2
Filter Diameter 95 mm
Max. Diameter and Length Approx. 102.3 x 314.1 mm/40.28 x 123.66 in.
Weight Approx. 2050 g/72.31 oz.
Hood ET-101*
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Lens Cap E-95*
3
Lens Dust Cap LensDustCapRF*
3
Case LZ1438 (sold separately)
*1Changesaccordingtothefocallength.Pleaserefertothe “4. Zooming” page for details.
*2Thefieldofviewatafocallengthof800mmisapprox.173x115mm.
*3Includedwiththelens,butcanbepurchasedseparately.
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Specifications
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The lens length is measured from the lens mount surface to the front end of the lens.
Add 24.4 mm/0.96 in. when including the lens cap and dust cap.
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The maximum diameter, length and weight listed are for the lens itself only.
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Close-up Lens 250D/500D cannot be attached because there is no size that fits the lens.
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All data listed is measured according to Canon standards.
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Product specifications and appearance are subject to change without notice.
CT1-D284-A 0823SZ © CANON INC. 2023
