Thank you for purchasing a Canon product.
Canon’s EF16-35mm f/4L IS USM is a highperformance ultra-wide angle zoom lens, for use
with EOS cameras. The lens is installed with an
Image Stabilizer.
“IS” stands for Image Stabilizer.
“USM” stands for Ultrasonic Motor.
Features
1. Equipped with an Image Stabilizer that provides
an image stabilization effect equivalent to a
shutter speed 4 stops* faster (at 35 mm, when
used with the EOS-1D X).
This function provides optimal image
stabilization depending on shooting conditions
(such as shooting still subjects and following
shots).
2. Use of UD and aspherical lens elements giving
superior denition.
3. Using a uorine coating on the foremost and
rearmost lens surfaces allows adhered dirt to be
removed more easily than before.
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4. Ultrasonic motor (USM) for fast, quiet autofocus.
5. Manual focusing is available after the subject
comes into focus in autofocus mode (ONE
SHOT AF).
6. Circular aperture for producing beautiful
softfocus images.
7. Tight seal structure ensures excellent dustproof
and drip-proof performance.
y Since the front element of this lens moves when
zooming, you need to attach a Canon PROTECT
lter sold separately for adequate dust-and waterresistant performance. Without a lter, the lens is
not dust or water resistant.
* Image stabilization performance based on CIPA
(Camera & Imaging Products Association) Standards.
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Safety Precautions
Handling 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, 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.
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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
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.
• 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.
15 of the FCC Rules.
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CAN ICES-3 (B) / NMB-3 (B)
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Nomenclature
Focus mode switch (→ 6)
Hood mount (→ 10)
Filter Mounting Thread
(→ 11)
Focusing ring (→ 6)
Image stabilizer switch (→ 8)
For detailed information, reference page numbers are provided in parentheses (→ **).
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Distance scale (→ 7)
Zoom ring (→ 6)
Rubber ring (→ 5)
Contacts (→ 5)
Lens mount index (→ 5)
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