EF24-70mm f/2.8L II USM
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Instructions
Safety Precautions
Handling Cautions
Safety Precautions
●● 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 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.
●● Do not leave the lens in excessive heat such as in a car
in direct sunlight. High temperatures can cause the
lens to malfunction.
onventions 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
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 Class B digital apparatus complies with Canadian ICES-
003.
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 an
used in accordance with the instructions, may cause harm
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.
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Nomenclature
Focus mode switch (→ 6)
Distance scale (→ 8)
Hood mount (→ 9)
Zoom ring (→ 6)
Rubber ring
(→ 5)
Filter Mounting Thread
(→ 10)
Contacts
(→ 5)
Focusing ring (→ 6)
Zoom ring lock lever
(→ 7)
Lens mount index (→ 5)
●● 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.
The lens mount has a rubber ring for enhanced
dust- and water-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.
●●After detaching the lens, place the lens with
the rear end up to prevent the lens surface and
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.
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2. Setting the Focus Mode 3. Zooming
To shoot in autofocus (AF) mode, set the focus
mode switch to AF.
To shoot in manual focus (MF) mode, set the
focus mode switch to MF, and focus by turning
the focusing ring.
To zoom, rotate the zoom ring.
Bsure to finish zooming before focusing. Zooming
after focusing can affect the focus.
The focusing ring always works, regardless of
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)
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4. Fixing the Zoom Ring
The zoom ring can be fixed to keep the lens at the shortest point. This function is convenient for
carrying a camera on a strap because it prevents the lens from extending.
1
Rotate thoom ring to the
widest poson (24 mm).
2
Slide the zoom ring lock
lever in the direction
indicated by the arrow.
●●To release the zoom ring,
slide the zoom ring lock lever
in the direction opposite to
the arrow.
The zoom ring can only be locked at maximum wide angle.
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5. 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 th
point at which the vertical line of the distance
scale L mark is aligned with the distance index.
For accurate focusing in MF on subjects at infinity
distance, look through the viewfinder while rotating
the focusing ring.
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6. Hood
The EW-88C hood cuts out unwanted light and protects the front of the lens from rain, snow, and
dust.
Button
●Attaching
●Removing
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 as shown by the arrow
until the lens’ red dot is aligned with the hood’s
stop position mark.
To remove the hood, hold down the button on
the side and turn the hood in the direction of the
arrow until the position mark on the hood aligns
with the red dot. The hood can be reverse-
mounted on the lens for storage.
●●If the hood is not attached properly, vignetting (darkening of the perimeter of the picture) may occur.
●●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.
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7. Filters
(sold separately)
8. Extension Tubes
(Sold Separately)
You can attach filters to the filter mounting
thread on the front of the lens.
You can attach extension tube EF12 II or EF25
II for magnified shots. The shooting distance
and magnification are shown below.
●●Only one filter may be attached.
●●If you need a polarizing filter, use the Canon
Circular Polarizing Filter PL-C B (82 mm).
●●To adjust the polarizing filter, first remove the
lens hood.
Focusing Distance Range (mm)
Magnification (×)
Close distance Long distance Close distance Long distance
24mm
70mm
24mm
70mm
178
259
190
523
0.63
0.45
0.50
0.18
EF12 II
25 I
Incompatible
229
331
0.74
0.41
MF mode is recommended for accurate focusing.
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Specifications
Focal Length/Aperture
Lens Construction
Minimum Aperture
24-70mm f/2.8
13 groups, 18 elements
f/22
Diagonal: 84° – 34°
Vertical: 53° – 19° 30′
Horizontal: 74° – 29°
Angle of View
Min. Focusing Distance
Max. Magnification
Field of View
0.38 m/1.25 ft.
0.21x (at 70 mm/2.76 inch)
369 x 554
–
134 x 202 mm/14.53 x 21.81
–
5.28 x 7.95 inch (at 0.38 m/1.25 ft.)
Filter Diameter
82 mm/3.23 inch
Max. Diameter and Length 88.5 x 113.0 mm/3.48 x 4.nch
Weight
Hood
Approx. 805 g/28.4 oz
EW-88C
Lens Cap
Case
E-82U
LP1219
●● 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.
●● Extenders cannot be used with this lens. In addition, there are no close-up lenses designed for use
with this lens.
●● Aperture settings are specified on the camera.
●● All data listed is measured according to Canon standards.
●● Product specifications and appearance are subject to change without notice.
ENG-11
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0812Ni © CANON INC. 2012
CT1-8579-005
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