Canon lens EFS 1755 f28 IS USM User Manual

EF-S17-55mm f/2.8 IS USM
Instruction
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Thank you for purchasing a Canon product.
The Canon EF-S17-55mm f/2.8 IS USM lens is
a large-aperture, high-performance standard
zoom lens equipped with an Image Stabilizer.
It has been developed for EOS cameras*
compatible with EF-S lenses.
¡“IS” stands for Image Stabilizer.
¡“USM” stands for Ultrasonic Motor.Features
1. The Image Stabilizer gives the equivalenteffect of a shutter speed three stops faster*.
2. Aspheric and UD lens elements for excellent imaging performance with a large f/2.8...

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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.
• 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.
Handling Cautions• If the lens is taken from a cold environment into
a warm one, condensation...

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Nomenclature
Distance scale (→ 5)
Contacts ( → 4)Focus mode switch
(→ 4)
Image stabilizer switch ( → 6)
Hood mount
(→ 9)
Lens mount index (→ 4)
Filter mounting 
thread (
→ 8)
Zoom ring ( → 5) Focusing ring (→ 4)
Zoom position index (
→ 5)
For detailed information, reference page numbers are provided in parenth\
eses ( → **).
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1Mounting and Detaching the Lens
See your camera’s instructions for details on
mounting and detaching the lens.
¡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.
¡...

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3Zooming
To zoom, turn the lens’ zoom ring.
Be sure to finish zooming before focusing.
Changing the zoom ring after focusing can affect
the focus.
4Infinity Compensation Mark
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...

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5Image Stabilizer
You can use the image stabilizer in AF or MF mode.
The image stabilizer in this lens
is effective for hand-held shots
under the following conditions.
¡In semi-darkened areas such
as indoors or outdoors at night.
¡In locations where flash
photography is prohibited, such as
art museums and theater stages.
¡In situations where your
footing is uncertain.
¡
In situations where fast shutter
settings cannot be used. 
1Set the STABILIZER
switch to  .
¡If you are not going to
use the image...

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Image Stabilizer
¡When you use a tripod, the Image Stabilizer
should be turned off to save battery power.
¡The stabilizer is equally effective for hand-held photography and photography with a monopod.
¡The image stabilizer function also operates when the lens is used with an Extension Tube
EF12 ll.
¡Pictures may look distorted after being taken depending on the camera, but this doesnt affect
shooting.
¡If you set the camera’s Custom Function to change the assigned button to operate the AF,
the...

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6Filters (Sold Separately)
You can attach filters to the filter mounting
thread on the front of the lens.
¡Only one filter may be attached.
¡If you need a polarizing filter, use the CanonCircular Polarizing Filter (77mm).
¡To adjust the polarizing filter, first remove the lens hood.
7Extension Tubes (Sold Separately)
You can attach Extension Tube EF12 II for
magnified shots. The shooting distance and
magnification are shown below.
Although Extension Tube EF25 II can be attached,
it is not...

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8Hood (Sold Separately)
The EW-83J hood can keep unwanted light out of the lens, and also protec\
ts the lens from rain,
snow, and dust.
To attach the hood, align the hood’s attachment position mark with th\
e red dot on the front of the
lens, then turn the hood as shown by the arrow until the lens red dot i\
s aligned with the hoods stop
position mark.
The hood can be reverse-mounted on the lens for storage.
¡Part of the picture may be blocked if the hood is not attached properly.\
¡When...