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Canon lens EF 70300mm f456L IS USM User Manual

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    							EF70-300mm f/4-5.6L IS USM
    Dedicated to EOS cameras, the Canon EF70-
    300mm f/4-5.6L 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.
    4. Ultrasonic motor (USM) for quick and quiet
    5. Manual focusing is available after the subject comes into focus in autofocus mode (ONE
    SHOT AF).
    6. The zoom ring can be fixed to keep the lens at the shortest point.
    7. A truly round aperture hole results in a nicer background blur.
    8. Tight seal structure ensures excellent dust- proof and drip-proof performance.
    *Based on [1/focal length] second. Generally, it requires
    a shutter speed [1/focal length] second or faster to
    prevent camera shake.
    1. The Image Stabilizer gives the equivalent
    effect of a shutter speed four 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 imaging performance.
    3. A fluorine coating has been applied to the lens’s front and rear lens elements which
    allows dust to be wiped from the outside of the
    lens more easily compared with previous
    Thank you for purchasing a Canon product.
    Conventions used in this instruction
    War ning to prevent lens or camera malfunction
    or damage.
    Supplementary notes on using the lens and
    taking pictures.
    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.
    • Do not point the lens or camera at the sun or
    photograph it. This is because the lens
    concentrates the sun’s rays even when the sun is
    outside the image area or when shooting with
    backlight, which could cause malfunction or fire.
    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 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
    wa rm  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
    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
    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
    This Class B digital apparatus complies with Canadian ICES-003.
    Hood mount (→ 6)Filter mounting
    thread (→ 13) Image stabilizer switch (→ 8)
    Image stabilizer mode selector switch (→ 8) Focus mode switch (→ 5)
    Zoom ring (→ 5)
    Focusing ring (→ 5)
    Distance scale (→ 11)
    Contacts (→ 4)
    Lens mount index (→ 4) Rubber ring (→ 4)Tripod mounting location (
    → 12)
    Zoom ring lock 
    lever (→ 7)
    For detailed information, reference page numbers are provided in parentheses ( →**).
    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 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, cover it with the dust
    cap. To attach it properly, align the lens mount
    index and the 
    Kindex of the dust cap as shown
    in the diagram, and turn clockwise. To remove it,
    reverse the order.
    1. Mounting and Detaching the Lens
    The lens mount has a rubber ring for enhanced
    w ater- and dust-resistance. The rubber ring may
    cause slight abrasions around the cameras lens
    mount, but this will not cause any problems. If the
    rub ber ring becomes worn, it is replaceable by a
    Canon Service Center at cost.
    3. Zooming
    To   zoom, turn the zoom ring.
    Be sure to finish zooming before focusing.
    Zooming after focusing can affect the focus.
    Especially for shooting distances shorter than 3 m
    / 9.8 ft., zooming to another focal length will
    greatly change the focus.
    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
    f ocusing ring. The focusing ring always works,
    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
    f ocus)
    4. Hood
    The ET-73B hood can keep unwanted light out of the lens, and also protects the lens from rain,
    snow, and dust.
    To  attach the hood, align the hood’s attachment position mark with the red dot on the front of the
    lens, then turn the hood as shown by the arrow until the lens red dot is aligned with the hoods stop
    position mark.
    The hood can be reverse-mounted on the lens for storage.
    •P art 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
    gr asp the rim of the hood to turn it.
    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.
    5. Fixing the Zoom Ring
    Slide the zoom ring lock
    lever in the direction
    indicated by the arrow.
    o release the zoom ring, slide
    the zoom ring lock lever in the
    direction opposite to the arrow.
    Tu rn  the zoom ring to the
    widest position (70mm).
    The zoom ring can only be locked at maximum wide angle.
    ou can use the image stabilizer in AF or MF mode.
    6. Image Stabilizer Settings
    Select the stabilizer mode.
    • MODE 1: Corrects vibrations
    in all directions. It is mainly
    effective for shooting still
    • MODE 2: It compensates for
    ver tical camera shake during
    f ollowing shots in a horizontal
    direction, and compensates for
    horizontal camera shake
    during following shots in a
    ver tical direction.
    When you press the shutter
    button halfway, the Image
    Stabilizer will start
    • Make sure the image in the
    viewfinder is stable, then press
    the shutter button the rest of
    the way down to take the
    Set the STABILIZER switch
    to .
    •If you are not going to use the
    image stabilizer function, set
    the switch to         .
    7. Tips on Using the Image Stabilizer
    •In semi-darkened areas such as indoors or
    outdoors at night.
    • In locations where flash photography is
    prohibited, such as art museums and theater
    • In situations where your footing is uncertain.
    •I n situations where fast shutter settings cannot
    be used. •
    When panning subjects in motion.
    ● MODE 1 ●MODE 2
    The image stabilizer in this lens is effective for hand-held shots under the following conditions.
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