2.8L USM Lens - ef16-35f28liiusm-im3-eng.pdf

Canon EF 16-35mm f/2.8L USM Lens Owners Manuals, User Guides, Instructional Help Documents & Operating Information - ef16-35f28liiusm-im3-eng.pdf

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EF16-35mm f/2.8L II USM


Y P O ENG Instruction

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.

C Conventions used in this instruction

Features 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 comes into focus in autofocus mode (ONE SHOT AF). 4. A truly round aperture hole results in a nicer background blur. 5. Tight seal structure ensures excellent dustproof 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.

Handling Cautions


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.


• 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 leave the lens in excessive heat such as in a car in direct sunlight. High temperatures can cause the lens to malfunction.

This Class B digital apparatus complies with Canadian ICES-003.


Nomenclature Focus mode switch (→ 5) Hood mount (→ 7)

Distance scale (→ 6)

Zoom ring (→ 5)

Filter mounting thread (→ 7)


Y P O Contacts (→ 4)

Focusing ring (→ 5) Lens mount index (→ 4) 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 c