Canon 8546B002 User manual
EF-S55-250mm f/4-5.6 IS STM
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Instructions
Thank you for purchasing a Canon product.
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The Canon EF-S55-250mm f/4-5.6 IS STM is
a high-performance telephoto zoom lens that
makes movie shooting comfortable. The lens
is equipped with an Image Stabilizer and has
been developed for EOS cameras compatible
with EF-S lenses*.
* Only the following EOS cameras are compatible
with EF-S lenses (as of July 2013):
EOS 7D, EOS 60D, EOS 60Da, EOS 50D, EOS
40D, EOS 30D, EOS 20D, EOS 20Da, EOS
REBEL T5i/700D, EOS REBEL SL1/100D, EOS
REBEL T4i/650D, EOS REBEL T3i/600D, EOS
REBEL T2i/550D, EOS REBEL T1i/500D, EOS
REBEL XSi/450D, EOS REBEL T3/1100D, EOS
REBEL XS/1000D, EOS DIGITAL REBEL XTi/400D
DIGITAL, EOS DIGITAL REBEL XT/350D DIGITAL,
EOS DIGITAL REBEL/300D DIGITAL, EOS M
(when using with Mount Adapter EF-EOS M)
"IS" stands for Image Stabilizer.
"STM" stands for stepping motor.
Features
1. Improved Movie Shooting Functions
• Stepping motor with lead screws achieves quiet,
smooth Movie Servo AF.
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2. High-speed, quiet Autofocusing achieved during
viewnder shooting.
3.
UD lens elements for excellent imaging performance.
4.
Equipped with an Image Stabilizer that provides
an image stabilization effect equivalent to a shutter
speed 3.5 stops*2 faster (telephoto end, when
used with the EOS 7D). The Image Stabilizer also
provides optimal image stabilization that responds
to shooting conditions (such as shooting still
subjects and following shots).
5.
Electronic manual focusing (MF) made possible by
electronically detecting the rotation of the focusing ring.
6.
Manual focusing is available after the subject comes
into focus in autofocus mode (ONE SHOT AF).
7. Circular aperture for producing beautiful
softfocus images.
*1: Function compatible with the following camera (as
of July 2013):
EOS REBEL T5i/700D, EOS REBEL SL1/100D,
EOS REBEL T4i/650D, EOS M (when using with
Mount Adapter EF-EOS M)
*2:
Image stabilization performance based on CIPA
(Camera & Imaging Products Association) Standards.
During actual shooting, image stabilization
performance varies depending on the amount of
camera shake, shooting conditions, and other factors.
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Handling Cautions
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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, rst 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.
Usage Precautions
When using this lens with an EOS REBEL T4i/650D
camera, please be sure to update the camera’s
rmware to version 1.0.4 or later.
If the EOS REBEL T4i/650D rmware is an earlier
version than 1.0.4, there is a slight chance that the
camera will stop operating. If this occurs, please remove
the battery temporarily and insert it again for correct
camera operation.
For information on rmware updates, please check the
Canon website.
Safety 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 re.
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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Safety Precautions
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This device complies with Part
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 modications to the equipment
unless otherwise specied in the instructions. If such
changes or modications 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.
15 of the FCC Rules.
This Class B digital apparatus complies with Canadian ICES-
003.
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Shooting Precautions
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The EF-S55-250mm f/4-5.6 IS STM utilizes a stepping motor that drives the focus lens. The motor
also controls the focus lens during zooming.
1. When the camera is OFF
The motor does not operate while the camera is OFF or when the camera is OFF due to the use of the auto power
off function. Therefore, users must be aware of the following points.
Manual focus adjustments are not possible.
During zooming, delayed focus will occur.
2. When the lens is in sleep mode
If not operated for a certain period of time, this lens will enter sleep mode in order to save power. Sleep mode
differs from when the camera is OFF due to the use of the auto power off function. In this state, the motor will not
operate even if the camera is ON. Therefore, users must be aware of the following points.
Manual focus adjustments are not possible.
During zooming, delayed focus will occur.
To exit sleep mode, press the shutter button halfway.
3. During initial reset
When the camera is ON or when the camera is turned ON by pressing the shutter button halfway down when the
camera is OFF due to the use of the auto power off function*1, the lens performs an initial reset of the focus lens.
Although the image in the viewnder will appear out of focus during the initial reset, this does not mean that the
lens has malfunctioned.
Although the shutter can be released during the initial reset, users must wait approximately 1 second*2 after the
initial reset has completed before shooting.
*1: Applicable to the following EF-S lens compatible EOS cameras:
EOS 7D, EOS 60D, EOS 60Da, EOS 50D, EOS 40D, EOS 30D, EOS 20D, EOS 20Da, EOS REBEL T3i/600D, EOS
REBEL T2i/550D, EOS REBEL T1i/500D, EOS REBEL XSi/450D, EOS REBEL T3/1100D, EOS REBEL XS/1000D, EOS
DIGITAL REBEL XTi/400D DIGITAL, EOS DIGITAL REBEL XT/350D DIGITAL, EOS DIGITAL REBEL/300D DIGITAL
*2: The initial reset time varies depending on camera being used.
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