Canon lens EF 800mm f56L IS USM User Manual

EF800mm f/5.6L IS USM
Instruction
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COPY  

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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...

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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...

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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)
F
or detailed information, reference page...

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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...

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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)
Y ou 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 Range2. Setting the Focus Mode
To   shoot in autofocus (AF) mode, set the focus
mode switch to AF.
To...

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4.Infinity Compensation Mark
Infinity compensation markDistance 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.
F or 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...

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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...

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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
r
ight, 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...

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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
ver tical camera shake during
f ollowing shots in a horizontal
direction, and compensates for
horizontal camera shake
during following shots in a
ver tical direction.
When you press the shutter
button halfway, the Image
Stabilizer will start
operating.
• Make sure...