Canon lens EF 1635mm f28L USM User Manual

EF16-35mm f/2.8L II USM
Instruction
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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 dust- proof and drip-proof performance.
•Since the front element of this lens moves when
zooming, you need to attach a Canon PROTECT
filter sold...

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aSafety Precautions
aSafety 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• If the lens is taken from a cold environment into
a...

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Nomenclature
Distance scale (→ 6)
Focus mode switch (→ 5)
Lens mount index (→ 4)Contacts (→ 4)
Hood mount (→ 7)
Zoom ring (→ 5)
Filter mounting
thread (→ 7) Focusing ring (→ 5)
For detailed information, reference page numbers are provided in parentheses ( →**).
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See your camera’s instructions for instructions on
mounting and detaching the lens.
•
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
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,...

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3. Zooming
To   zoom, turn the zoom ring.
Be sure to finish zooming before focusing.
Changing the zoom ring after focusing can affect
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
f ocusing ring. The focusing ring always works,
regardless of the focus mode.
2. Setting the Focus Mode
After autofocusing in ONE SHOT AF mode, focus
manually by pressing the shutter button...

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4.Infinity Compensation Mark
Infinity compensation markDistance index
To  compensate for shifting of the infinity focus
point that results from changes in temperature.
The infinity position at normal temperature is the
point at which the vertical line of the L mark is
aligned with the distance indicator on the
distance scale.
F or accurate manual focusing on subjects at
infinity distance, look through the viewfinder while
rotating the focusing ring.
The infrared index corrects the focus setting...

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You can attach filters to the filter mounting thread
on the front of the lens.
7. Filters (Sold separately)
•T o ensure dust- and water-resistant
performance, attach a Canon PROTECT filter
(82mm).
• Only one filter may be attached.
• If you need a polarizing filter, use the Canon
Circular Polarizing Filter (82mm).
6. Hood
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...

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Camera-to-SubjectMagnificationDistance (mm)Near Far Near Far
EF12 ll 16mm
Incompatible
35mm 202 248 0.62× 0.36×
EF25 ll 16mm
Incompatible
35mm 195 211 1.11× 0.80×
You can attach Extension Tube EF12 II or EF25
II for magnified shots. The shooting distance and
magnification are shown below.
8. Extension Tubes 
(Sold separately)
Manual focusing is recommended for accurate
f ocusing.
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Specifications
Focal Length/Aperture16 – 35 mm f/2.8
Lens Construction12 groups, 16 elements
Minimum Aperturef/22
Angle of ViewDiagonal: 108° 10’ – 63° Vertical: 74° 10’ – 38° Horizontal: 98° – 54°
Min. Focusing Distance0.28 m / 0.9 ft.
Max. Magnification and  0.22×(at 35 mm),
Field of View 231 ×358 mm – 109  ×162 mm / 9.1  ×14.1 inch – 4.3  ×6.4 inch (at 0.28 m)
Filter Diameter 82 mm
Max. Diameter and Length88.5 ×111.6 mm / 3.5  ×4.4 inch
W eight 635 g / 22.4 oz
Hood EW-88
Lens CapE-82U/E-82 II...