Canon 2746B002 Manuale utente
EF800mm f/5.6L IS USM
Instruction
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Designed for EOS cameras, the EF800mm
f/5.6L IS USM is a high-performance super-
telephoto lens equipped with an Image
Stabilizer.
• "IS" stands for Image Stabilizer.
• "USM" stands for Ultrasonic Motor.
Features
1. The Image Stabilizer gives the equivalent
effect of a shutter speed four stops faster*.
The lens also has a second image stabilizer
mode that is optimized for following shots of
moving subjects.
2. The lens features outstanding image quality
through the use of fluorite, super UD, and UD
lens elements.
3. Ultrasonic motor (USM) for quick and quiet
autofocusing.
4. Manual focusing is available after the subject
comes into focus in autofocus mode (ONE
SHOT AF).
5. The AF Stop button for stopping the AF
operation at anytime.
6. Focus preset enables you to focus instantly at
a preset distance.
7. A truly round aperture hole results in a nicer
background blur.
8. The lens is compatible with Extender EF1.4X ll
and EF2X ll.
9. Tight seal structure ensures excellent dust-
proof and drip-proof performance.
10
.Designed for lighter weight with major parts
made of magnesium alloy.
*Based on [1/focal length] second. Generally, it requires
a shutter speed [1/focal length] second or faster to
prevent camera shake.
Thank you for purchasing a Canon product.
Conventions used in this instruction
Warning to prevent lens or camera malfunction
or damage.
Supplementary notes on using the lens and
taking pictures.
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aSafety Precautions
aSafety Precautions
•
Do not look at the sun or a bright light source through the
lens or camera. Doing so could result in loss of vision. Looking
at the sun directly through the lens is especially hazardous.
•
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.
•Whether it is attached to the camera or not, do not
leave the lens under the sun without the lens cap
attached. This is to prevent the lens from concentrating
the sun’s rays, which could cause a fire.
•Do not stand on the lens case. Falling off the case
could result in injury.
•Do not stack lens cases. A falling lens case could
cause an injury.
Handling Cautions
•
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.
•Do not leave the lens in excessive heat such as in a
car in direct sunlight. High temperatures can cause
the lens to malfunction.
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.
•Consult the dealer or an experienced radio/TV technician for
help.
This Class B digital apparatus complies with Canadian ICES-003.
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Nomenclature
Orientation locking knob (→14)
Lens mount index (→4)
Distance scale (→6)
Drop-in filter (→12)
Strap mount (→4)
Contacts (→4)
Focus mode switch (→5)
Focusing distance range selection switch (→5)
Image stabilizer mode selector switch (→9)
Focus preset button (→8)
Focus preset switch (→8)
Image stabilizer switch (→9)
Tripod mount (→14)
AF stop button (→7)
Playback ring (→8)
Focusing ring (→5)
Rubber ring (→4)
Hood mount (→6)
For detailed information, reference page numbers are provided in parentheses (→**).
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•After detaching the lens, place the lens with the
rear end up to prevent the lens surface and
electrical contacts from getting scratched.
•If the contacts get soiled, scratched, or have
fingerprints on them, corrosion or faulty
connections can result.The camera and lens
may not operate properly.
•If the contacts get soiled or have fingerprints on
them, clean them with a soft cloth.
•If you remove the lens, cover it with the dust
cap.To attach it properly, align the lens mount
index and the
K
index of the dust cap as shown
in the diagram, and turn clockwise.To remove it,
reverse the order.
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.
Attaching the strap
See your camera’s instructions for details on
mounting and detaching the lens.
1.Mounting and Detaching the Lens
The lens mount has a rubber ring for enhanced
water- and dust-resistance.The rubber ring may
cause slight abrasions around the camera's lens
mount, but this will not cause any problems. If the
rubber ring becomes worn, it is replaceable by a
Canon Service Center at cost.
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After autofocusing in ONE SHOT AF mode, focus
manually by pressing the shutter button halfway
and turning the focusing ring. (Full-time manual
focus)
You can set the focusing distance range at
6m/19.7ft. to infinity, 6m/19.7ft. - 20m/65.6ft., or
20m/65.6ft. to infinity.
By setting the suitable focusing distance range,
the actual autofocusing time can be shorter.
3.
Switching the Focusing
Distance Range
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.The focusing ring always works,
regardless of the focus mode.
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4.
Infinity Compensation Mark
Infinity compensation mark
Distance index
To compensate for shifting of the infinity focus
point that results from changes in temperature.
The infinity position at normal temperature is the
point at which the vertical line of the L mark is
aligned with the distance indicator on the
distance scale.
For accurate manual focusing on subjects at
infinity distance, look through the viewfinder while
rotating the focusing ring.
The dedicated Lens Hood ET-155 helps to
prevent stray light from entering the lens and
protects the front of the lens from rain, snow or
dust.
To attach the hood, loosen the hood locking knob
by turning it counterclockwise. Fit the hood onto
the lens hood mount, and tighten the locking
knob to fix it in place. Use the same procedure,
in reverse, to remove the hood.
5.Hood
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During autofocus operation, you can press the
AF stop button to temporarily pause autofocus.
If the shutter button is still pressed halfway when
the AF stop button is released, autofocusing will
continue as before.
•With the EOS 630/600, RT, A2/A2E/5, or 10S/10
set to the AI Servo AF mode and continuous
shooting, AF will not resume even after you let
go of the AF stop button. Press the shutter
release button halfway to resume AF.
•With the EOS A2/A2E/5 and 10S/10 set to the
Sports mode, AF will not resume even after you
let go of the AF stop button. Press the shutter
release button halfway to resume AF.
•The AF stop function also works in AI Servo AF
mode.
•By setting the camera's Custom Function, you
can change the AF stop button's function. For
details, see the camera's instruction manual.
6.AF Stop Button
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By presetting any focusing distance, you can
instantly focus at that point even while you are
shooting a different subject.This function
operates in both the AF and MF modes. How to Focus at the Preset Distance
While turning the playback ring to the left or
right, press the shutter button completely.
•The lens will focus at the preset distance.
•If the focus preset switch was set to , the beeper
will sound twice.
How to Set
Set the focus preset switch to or .
Press the shutter button halfway to focus the
distance you want to preset.
Press the focus preset button.
•The focused distance will be preset.
•If the focus preset switch was set to , the
beeper will sound once.
7.Focus Preset
•When turning the playback ring, keep your finger
away from the shutter button. In One-Shot AF
mode, the exposure will be locked when you
press the shutter button halfway and focus is
achieved. So if you press the shutter button
halfway while turning the playback ring, the
exposure may not be correct.
•When not using the focus preset, set the switch
to OFF.
In the following cases, the focusing distance scale
will move slightly. It will not affect the image.
•When you press the focus preset button.
•When you turn the playback ring.
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8.Image Stabilizer Settings
You can use the image stabilizer in AF or MF mode.
Select the stabilizer mode.
•MODE 1: Corrects vibrations
in all directions. It is mainly
effective for shooting still
subjects.
•MODE 2: It compensates for
vertical camera shake during
following shots in a horizontal
direction, and compensates for
horizontal camera shake
during following shots in a
vertical direction.
When you press the shutter
button halfway, the Image
Stabilizer will start
operating.
•Make sure the image in the
viewfinder is stable, then press
the shutter button the rest of
the way down to take the
picture.
Set the STABILIZER switch
to .
•If you are not going to use the
image stabilizer function, set
the switch to .
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