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.

.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

•

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

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.

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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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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