EF16-35mm f/2.8L II USM
Thank you for purchasing a Canon product.
The Canon EF16-35mm f/2.8L II USM lens is a high-performance, ultra-wide-angle zoom lens for use with Canon EOS cameras.
"USM" stands for Ultrasonic Motor.
1. Aspherical and UD lens elements result in outstanding image delineation.
2. Ultrasonic motor (USM) for quick and quiet autofocusing.
3. Manual focusing is available after the subject
Conventions used in this instruction
comes into focus in autofocus mode (ONE
4. A truly round aperture hole results in a nicer
proof and drip-proof performance.
• Since the front element of this lens moves when zooming, you need to attach a Canon PROTECT filter sold separately for adequate dust-and water-resistant performance. Without a filter, the lens is not dust or water resistant.
Warning to prevent lens or camera malfunction or damage.
Supplementary notes on using the lens and taking pictures.
a Safety Precautions a 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 fire.
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 leave the lens in excessive heat such as in a car in direct sunlight. High temperatures can
cause the lens to malfunction.
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
Y 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 Class B digital apparatus complies with Canadian ICES-003.
Hood mount (
Focus mode switch (
Distance scale (
Zoom ring (
Filter mounting thread (
Focusing ring (
Lens mount index (
For detailed information, reference page numbers are provided in parentheses (
1. Mounting and Detaching the Lens
See your camera’s instructions for instructions on mounting and detaching the lens.
The lens mount has a rubber ring for enhanced water- and dust-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 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
Y 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
K index of the dust cap as shown in the diagram, and turn clockwise. To remove it, reverse the order.
2. Setting the Focus
To shoot in autofocus (AF) mode, set the focus mode switch to AF.
To use only manual focusing (MF), set the focus mode switch to MF, and focus by turning the focusing ring. The focusing ring always works,
COP Be sure to finish zooming before focusing.
Changing the zoom ring after focusing can affect the focus.
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)
4. Infinity Compensation Mark
Infinity compensation mark
5. Infrared Index
The infrared index corrects the focus setting when using
To compensate for shifting of the infinity focus point that results from changes in temperature.
The infinity position at normal temperature is the monochrome infrared film. Focus on the subject
Y point at which the vertical line of the L mark is aligned with the distance indicator on the distance scale.
focusing ring to the corresponding infrared index mark.
Some EOS cameras cannot use infrared film. See the instructions for your EOS camera.
For accurate manual focusing on subjects at infinity distance, look through the viewfinder while rotating the focusing ring.
• 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 also when you take the picture.
6. Hood 7. Filters
You can attach filters to the filter mounting thread on the front of the lens.
• To ensure dust- and water-resistant performance, attach a Canon PROTECT filter
• Only one filter may be attached.
• If you need a polarizing filter, use the Canon
Circular Polarizing Filter (82mm).
The EW-88 hood can keep unwanted light out of the lens, and also protects the front of the lens from rain, snow, and dust.
To attach the hood, align the hood’s attachment lens, then turn the hood as shown by the arrow
COP until the lens' red dot is aligned with the hood's
Y 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.
8. Extension Tubes
You can attach Extension Tube EF12 II or EF25
II for magnified shots. The shooting distance and magnification are shown below.
Manual focusing is recommended for accurate
Angle of View
16 – 35 mm f/2.8
12 groups, 16 elements f/22
Diagonal: 108° 10’ – 63° Vertical: 74° 10’ – 38° Horizontal: 98° – 54°
Min. Focusing Distance
Max. Magnification and
Field of View
0.28 m / 0.9 ft.
× (at 35 mm),
× 358 mm – 109 × 162 mm / 9.1 × 14.1 inch – 4.3 × 6.4 inch (at 0.28 m)
Max. Diameter and Length 88.5
× 111.6 mm / 3.5 × 4.4 inch
635 g / 22.4 oz
• 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.
• The EF1.4X II/EF2X II extenders cannot be used with this lens. In addition, there is no size available among
250D/500D close-up lenses.
• 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.
CT1-7569-004 © CANON INC. 2006 2009.7
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