Canon lens EF 75300mm f456 IS USM User Manual

EF70-300mm f/4-5.6 IS USM
Instruction
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Thank you for purchasing a Canon product.
Dedicated to EOS cameras, the Canon EF70-
300mm f/4-5.6 IS USM lens is a high-
performance telephoto zoom lens equipped
with an Image Stabilizer.
¡“IS” stands for Image Stabilizer.
¡“USM” stands for Ultrasonic Motor.Features
1. The Image Stabilizer gives the equivalenteffect of a shutter speed three stops faster*.
The lens also has a second image stabilizer
mode that is optimized for following shots of
moving subjects.
2. UD lens elements for excellent...

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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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Image stabilizer mode selector switch (→ 7)
Zoom ring 
lock lever (→ 6)
Contacts
(→ 4) Focus mode switch (→ 4)
Image stabilizer switch ( → 7)
Hood mount (→ 5)
Lens mount index (→ 4)
Filter mounting 
thread (→ 10)
Zoom ring (→ 5)
Focusing ring (→ 4) Zoom position index (
→ 5)
Nomenclature
For detailed information, reference page numbers are provided in parentheses (→  **).
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2.Setting the Focus Mode
¡Do not touch the rotating parts of the lens whileautofocus is active.
¡Do not adjust focus manually when the focus mode switch is set to AF.
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.
See your camera’s instructions for details on
mounting and detaching the lens.
¡After detaching the lens, place the lens with the
rear end up to prevent the...

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4. Zooming
To  zoom, turn the lens’ zoom ring.
Be sure to finish zooming before focusing.
Changing the zoom ring after focusing can affect
the focus.
3. Hood (Sold separately)
¡The front end of the lens rotates, so hold it when
attaching the hood.
¡Pa rt 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.
The ET-65B hood can keep unwanted...

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5. Fixing the Zoom Ring
The zoom ring can be fixed to keep the lens at the shortest point. This function is convenient for
carrying a camera on a strap because it prevents the lens from extending.
1Turn the zoom ring to
the widest position
(70mm).2Slide the zoom ring
lock lever in the
direction indicated by
the arrow.
¡To   release the zoom ring,
slide the zoom ring lock
lever in the direction
opposite to the arrow.
The zoom ring can only be locked at maximum wide angle.
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6. Image Stabilizer
You can use the image stabilizer in AF or MF mode.
1Set the STABILIZER
s witch to  .
¡If you are not going to
use the image stabilizer
function, set the switch to .
2Select the stabilizer
mode.
¡MODE 1: Correctsvibrations in all
directions. It is mainly
effective for shooting still
subjects.
¡MODE 2: It compensates for vertical camera shake
during following shots in
a horizontal direction,
and compensates for
horizontal camera shake
during following shots in
a vertical...

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7. Tips on Using the Image Stabilizer
The image stabilizer in this lens is effective for hand-held shots under the following conditions.
¡In semi-darkened areas such as indoors or
outdoors at night.
¡ In locations where flash photography is
prohibited, such as art museums and theater
stages.
¡ In situations where your footing is uncertain.
¡ In situations where fast shutter settings cannot
be used. ¡
When panning subjects in motion.
● MODE 1●MODE 2
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Tips on Using the Image Stabilizer
¡When you use a tripod, the ImageStabilizer should be turned off to save
battery power.
¡The stabilizer is equally effective for hand- held photography and photography with a
monopod.
¡The image stabilizer function also operates when the lens is used with an
Extension Tube EF12 ll or EF25 ll.
¡Pictures may look distorted after being taken depending on the camera, but this
doesnt affect shooting.
¡If you set the camera’s Custom Function to change the assigned...