Canon EF-S17-85mm f/4-5.6 IS USM User manual

EF-S17-85mm f/4-5.6 IS USM
Instruction

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Thank you for purchasing a Canon USM lens.
The Canon EF-S17-85mm f/4-5.6 IS USM lens
is a compact and lightweight standard zoom
lens developed for EOS cameras* compatible
with EF-S lenses.
It is equipped with an Image Stabilizer
effective for hand-held shooting at slow
shutter speeds.
¡“IS” stands for Image Stabilizer.
¡“USM” stands for Ultrasonic Motor.
Features
1. Aspheric lens element for excellent imaging
performance.
2. The Image Stabilizer gives the equivalent
effect of a shutter speed three stops faster.
3. USM for fast, quiet focusing.
4. Great close-ups at 0.35 m/1.2 ft at all focal
lengths.
5. Manual focusing available in autofocusing
mode (ONE SHOT AF).
6. A truly round aperture hole results in a nicer
background blur.
Conventions used in this instruction
Warning to prevent lens or camera
malfunction or damage.
Supplementary notes on using the lens
and taking pictures.
* As of October 2006, only the EOS 30D, EOS
20D, EOS 20Da, EOS DIGITAL REBEL XTi/400D
DIGITAL, EOS DIGITAL REBEL XT/350D
DIGITAL, and EOS DIGITAL REBEL/300D
DIGITAL are compatible with EF-S lenses.

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aSafety Precautions
1. 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.
2. 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.
aHandling 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.
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 digital apparatus does not exceed the Class B limits for
radio noise emissions from digital apparatus as set out in the
interference-causing equipment standard entitled “Digital
Apparatus”, ICES-003 of the Industry Canada.
N118

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Nomenclature
Distance scale (→5, 8)
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
For detailed information, reference page numbers are provided in parentheses (→ **).

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1
Mounting 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.
¡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.
2Setting the Focus Mode
After autofocusing in ONE SHOT AF mode, focus
manually by pressing the shutter button halfway
and turning the focusing ring. (Full-time manual
focus)
To shoot in autofocus mode, set the focus mode
switch to AF.
To use only manual focusing, 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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3
Close-up Photography (Macro Photography)
4Zooming
The lens can focus as close as 0.35 m/1.2 ft for
close-ups (macro photography).
To focus at 0.35 m/1.2 ft, set the lens focus mode
switch to MF. Look through the viewfinder and
move your body forward or back to focus. Take
the shot when the subject is in focus.
To zoom, turn the lens’ zoom ring.
Be sure to finish zooming before focusing.
Changing the zoom ring after focusing can affect
the focus.

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5Image Stabilizer
You can use the image stabilizer in AF or MF mode.
The image stabilizer is particularly
effective for hand-held shots in
the following conditions.
¡Dimly lit scenes, such as at
dusk or indoors
¡
Locations such as art galleries
or theater stages where flash
photography is forbidden
¡Situations in which your
footing is uncertain
1Set the STABILIZER
switch to .
¡If you are not going to
use the image stabilizer
function, set the switch to
.
2When 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.

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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 or EF25 ll.
¡If you set the camera’s Custom Function to
change the assigned button to operate the AF,
the Image Stabilizer will operate when you press
the newly assigned AF button.
¡The Image Stabilizer cannot compensate for a
blurred shot caused by a subject that moved.
¡Set the STABILIZER switch to when you
are taking pictures using the Bulb setting (long
exposures). If the STABILIZER switch is set
to , the image stabilizer function may
introduce errors.
¡The Image Stabilizer might not be fully effective
in the following cases:
• You move the camera for a panned shot.
• You shoot while riding on a bumpy road.
¡Compared to using a normal non-IS lens, fewer
shots can be taken when you use an Image
Stabilizer lens because more power is
consumed.
¡The image stabilizer operates for about two
seconds even when your finger is off the shutter
button. Do not remove the lens while the
stabilizer is in operation. This will cause a
malfunction.

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6Infinity Distance Mark 7Filters (Sold Separately)
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.
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 Canon’s PL-C
67mm polarizing filter.
¡To adjust the polarizing filter, first remove the
lens hood.
¡When the PL-C 67mm polarizing filter is
attached, the lens cap cannot be attached.
For accurate manual focusing on subjects at
infinity distance, look through the viewfinder while
rotating the focusing ring.

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8Hood (Sold Separately)
The EW-73B hood can keep unwanted light out of the lens, and also protects the lens from rain,
snow, and dust.
To attach the hood, align the hood’s attachment position mark with the red dot on the front of the
lens, then turn the hood clockwise until the lens’s red dot is aligned with the hood’s 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 attaching or detaching the hood, grasp the base of the hood to turn it. To prevent deformation, do not
grasp the rim of the hood to turn it.
¡When using the built-in flash, detach the lens hood first. The hood will obstruct the flash.

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9
Extension Tubes (Sold Separately)
You can attach Extension Tube EF12 II or EF25
II for magnified shots. The shooting distance and
magnification are shown below.
¡Extension Tube EF12 or EF25 cannot be
attached.
¡When an Extension Tube is attached, focus
manually.
Camera-to-Subject Magnification
Distance (mm)
Near Far Near Far
EF12 II 17mm Incompatible Incompatible
85mm 222 656 0.43×0.14×
EF25 II 17mm Incompatible Incompatible
85mm 189 368 0.72×0.33×
10
Gelatin Filter Holder (Sold separately)
With the Gelatin Filter Holder, you can use filters
to create various effects.
The Gelatin Filter Holder compatibility is shown
below.
¡Gelatin Filter Holder lll: Incompatible
¡Gelatin Filter Holder lV: Compatible (lens hood
cannot be used)

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11
Specifications
Image Size 15.1 ×22.7 mm
Focal Length/Aperture 17 – 85 mm f/4 – 5.6
Lens Construction 12 groups, 17 elements
Minimum Aperture f/22 – 32
Angle of View Diagonal: 78° 30’ – 18° 25’ Vertical: 48° – 10° 25’
Horizontal: 68° 40’ – 15° 25’
Min. Focusing Distance 0.35 m/1.2 ft.
Max. Magnification 0.2 × (at 85 mm)
Field of View approx. 219 ×328 – 75 ×112 mm/8.6 ×12.9 – 3.0 ×4.4 inch (at 0.35 m)
Filter Diameter 67 mm/2.6 inch
Max. Diameter and Length 78.5 ×92 mm/3.1 ×3.6 inch
Weight 475 g/16.8 oz
Hood EW-73B (Sold separately)
Lens Cap E-67U
Case LP1116 (Sold separately)
¡Equivalent to 27-136 mm in the 35mm film format.
¡The lens length is measured from the mount surface to the front end of the lens. Add 21.5 mm when including
the lens cap and dust cap.
¡The size and weight listed are for the lens only, except as indicated.
¡Aperture settings are specified on the camera. The camera automatically compensates for variations in the
aperture setting when the camera is zoomed in or out.
¡The EF1.4X II/EF2X II extenders cannot be used with this lens. Also, there is no compatible Close-up Lens.
¡All data listed is measured according to Canon standards.
¡Product specifications and appearance are subject to change without notice.

©CANON INC. 2004CT1-7553-006
2006.9.1