EF11-24m
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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.
● The F11-24mm f/4L USM features a large diameter
froens element. Please be careful because this
arge ont section will extend past the bottom of some
cameras.
● 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
Conventions used in this instruction
● When using this lens, please check the Canon webse
for the latest camera firmware. If the camera’s fimware
is not the latest version, be sure to update to the latest
firmware.
Warning to prevent lens or camera malfunction
or damage.
● For details on updating firmware, please check the
Canon website.
Supplementary notes on using the lens and
taking pictures.
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Precautions for Shooting
● If dirt or dust adheres to the surface of the front lens element, it can easily appear in images due to the
lens’s short focal length. In order to avoid this, please remove dirt or dust from the surface of the front lens
element by using a commercially available air dust blower.
● Since this lens has a wide angle of view, light from bright light sources, such as the sun, can easily enter
the image area. Please do not look at bright light sources using the camera’s viewfinder.
● Similarly, flare and ghost will occur when bright light sources appear in the image area, depending on
shooting conditions. In order to prevent flare and ghost, we suggest shooting places such as shaded are
as so that bright light does not enter the lens.
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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.
CAN ICES-3 (B) / NMB-3 (B)
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
used in accordance with the instructions, may cause ha
interference to radio communications.
However, there is no guarantee that interference ill not
occur in a particular installation. If this equipment des
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.
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician
for help.
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Nomenclature
Built-in lens hood
Focus mode switch (→ 7)
Distance scale (→ 8)
Zoom ring (→ 7)
Rubber ring (→ 6)
Gelatin filter holder (→ 9)
Contacts (→ 6)
Focusing ring (→ 7)
Lens mount index (→ 6)
● 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.
Please be careful when laying the lens
seways. The lens may roll and fall, resulting
in njury.
● 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 turnin
the focusing ring.
To zoom, rotate the zoom ring.
Also, te minimum focusing distance of the lens
nges depending on focal length.
Focal Length
(mm)
Min. Focusing
Distance (m/ft)
Magnification (×)
The focusing ring always works, regardess of
the focus mode.
11
16
24
0.32 / 1.05
0.29 / 0.95
0.28 / 0.92
0.06
0.10
0.16
After autofocusing in ONE SHOT AF mode, focus
manually by pressing the shutter button halfway
and turning the focusing ring. (Full-time manual
focus)
● Be sure to finish zooming before focusing.
Zooming after focusing can affect the focus.
● Zooming in causes the front lens assembly to
extend along the lens’s optical axis. This adds
to the weight of the lens assembly, so pointing
it up or down when zooming in may increase or
decrease the torque felt in the zoom ring.
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4. ꢀInfinityꢀCompensationꢀ 5. Infrared Index
Mark
Infinity compensation
mark
The inared index corrects the focus setting
Distance index
when ing monochrome infrared film. Focus on
subjct manually, then adjust the distance
stting by moving the focusing ring to the
corresponding infrared index mark.
To compensate for shifting of the infinity focus
point that results from changes in temperatur
there is a margin at the infinity (∞) positon.
The infinity position at normal temperatre is the
point at which the vertical line of the distance
scale L mark is aligned with the distance index.
Some EOS cameras cannot use infrared film. See
the instructions for your EOS camera.
● The infrared index position is based on a
wavelength of 800 nm.
● The compensation amount differs depending on
the focal length. Use the indicated focal length
as a guide when setting the compensation
amount.
● Be sure to observe the manufacturer’s
instructions when using infrared film.
● Use a red filter when you take the picture.
For accurate manual focusing of subjects at infinity,
look through the viewfinder or look at the magnified
image* on the LCD screen while rotating the
focusing ring.
* For cameras with Live View shooting capability.
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6. Lens Cap
7. Filter (Sold separately)
Lock knobs
The lens cap can be attached by pinching the
lock knobs and vertically aligning the lens cap
with the lens hood as shown in the diagram.
There a gelatin filter holder at the rear of the
lens. Ct the gelatin filter to fit within the white
es. Then insert the gelatin filter into the filter
hlder.
The recessed sections of the lens hood tht the
cap locks on to are located at the front insde edge
of the top and bottom petals.
The lens’s rear lens group moves back toward the
rear of the lens (camera side) the most when the
lens is set to the wide end. Therefore, in order to
prevent the rear lens element from making contact
with a filter (when installed), we recommend using
a filter only if the zoom ring is not set to the wide
end.
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8. Extension Tubes
(Sold separately)
You can attach extension tube EF12 II for
magnified shots. The shooting distance and
magnification are shown below.
Focusing Distance
Magnification (×)
Range (mm)
Close
Long
Close
Long
distance distance distance distance
11mm
24mm
Incompatible
EF12 II
188
203
0.73
0.5
MF mode is recommended for accurate focsin
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Specifications
Focal Length/Aperture
Lens Construction
Minimum Aperture
Angle of View
11-24mm f/4
11 groups, 16 elements
f/22
Diagonal: 126°05′ - 84°, Vertical: 95° - 53°, Horizontal: 117°10′ - 74°
0.28 m/0.92 ft. (at 24 mm)
0.32 m/1.05 ft. (at 11 mm)
Min. Focusing Distance
Max. Magnification
Field of View
0.16x (at 24 mm)
Approx. 196 x 307 mm/7.72 x 12.0inch (at 0.32 m/1.05 ft.) -
74 x 112 mm/2.91 x 4.41 inch (at 08 m/0.92 ft.)
Filter
Gelatin filter holder (locatehe rer of the lens)
Max. Diameter and Length 108.0 x 132.0 mm/45.2inch
Weight
Hood
Approx. 1180 g/41.6
Built-in
Lens Cap
Case
Lens Cap 11-24
LP1424
● The lens length is measured from the mount surface to the front end of the hood. Add 23.5 mm
when including the lens cap and dust cap.
● The size and weight listed are for the lens only, except as indicated.
● The EF1.4X II, III/EF2X II, III extender and 250D/500D close-up lenses cannot be used 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.
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0814Ni © CANON INC. 2014
CT1-8600-000
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