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Canon lens EF 2470mm f4L IS USM User Manual

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    EF24-70mm f/4L IS USM
    Thank you for purchasing a Canon product.
    Canon’s EF24-70mm f/4L IS USM is a high-
    performance standard zoom lens, for use with 
    EOS cameras. The lens is installed with an Image 
    Stabilizer, and allows for close-up shooting up to a 
    magnification of 0.7x when the zoom ring is set to 
    ●●“IS” stands for Image Stabilizer.
    ●● “USM” stands for Ultrasonic Motor.
    1. The Image Stabilizer provides the effect of 
    a shutter speed about four stops faster 
    during normal shooting.*
     This function 
    provides optimal image 
    stabilization depending on shooting conditions 
    (such as shooting still subjects, following shots, 
    and close-up shooting).
     And with 
    the vibration gyro and acceleration 
    sensor, the image stabilization is highly effective 
    even for close-up shots. (Equipped with a 
    Hybrid IS)
     Use of 
    UD lens elements and two types of 
    aspherical lens elements giving superior 
    definition. 4.
     Setting the 
    zoom ring to macro allows for macro 
    shooting up to a magnification of 0.7x.
     Using a 
     fluorine coating on the foremost and 
    rearmost lens surfaces allows adhered dirt to be 
    removed more easily than before.
     Ultrasonic motor 
     (USM) for fast, quiet autofocus.
     focusing is available after the subject 
    comes into focus in autofocus mode (ONE 
    SHOT AF).
     aperture for producing beautiful 
    softfocus images.
    9. Tight  seal structure ensures excellent dustproof 
    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.
     Safety Precautions
     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.
    Conventions used in this instruction
     Warning to prevent lens or camera malfunction 
     Supplementary notes  on using the lens and 
    taking pictures.
    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 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 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 
     Consult the 
    dealer or an experienced radio/TV technician 
    for help.
     Safety Precautions
    This Class B digital apparatus complies with Canadian ICES-
    ●● For detailed information, reference page numbers are provided in parentheses (→  **).
    Focus mode switch (→ 6)
    Distance scale ( → 12)
    Zoom ring (→ 6)
    Rubber ring
    (→ 5)
    Hood mount (
    → 17)
    Filter Mounting Thread
    (→ 18) Focusing ring ( → 6)
    Image stabilizer switch ( → 13) Lens mount index (
    → 5)
    Contacts (→ 5) Zoom ring lock lever
    (also serves as a 
    macro switch)
    (→ 7, 8)
    1. Mounting and Detaching the Lens
    See your camera’s instructions for details on 
    mounting and detaching the lens.The lens mount has a rubber ring for enhanced 
    dust- and water-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 
    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   index of the dust cap as shown 
    in the diagram, and turn clockwise. To remove it, 
    reverse the order.
    2. Setting the Focus Mode3.  Zooming
    After autofocusing in ONE SHOT AF mode, focus 
    manually by pressing the shutter button halfway 
    and turning the focusing ring. (Full-time manual 
    To shoot in autofocus (AF) mode, set the focus 
    mode switch to AF.
    To shoot in manual focus (MF) mode, set the 
    focus mode switch to MF, and focus by turning 
    the focusing ring. 
    The focusing ring always works, regardless of 
    the focus mode.To zoom, rotate the zoom ring.
    Be sure to finish zooming before focusing. Zooming 
    after focusing can affect the focus. 
    4. 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. 
    2 Slide 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.
    1 Rotate the zoom ring to the 
    position (24 mm).
    The zoom ring can only be locked at maximum wide angle.
    5. Setting for Close-up Shooting
    Setting the zoom ring to macro allows for close-up shooting.●●After the zoom ring has been set to macro, the zoom ring can only be operated within the macro 
    range (indicated by the yellow line).
    ●● To set the zoom ring back to the normal zoom range, slide the macro switch (zoom ring lock lever) 
    to MACRO (just as in step 1). While keeping your finger on the lever, rotate the zoom ring toward 
    the wide end. Release the lever once the zoom ring is set to the normal zoom range.
    ●●Magnification refers to the comparison of the size of a subject to the size of its image in the imaging area.●● Setting the zoom ring to the macro range allows for close-up shooting (minimum focusing distance of 20 cm) up to a 
    maximum magnification of 0.7x. The focusing distance refers to the distance between the subject and imaging area. 
    In addition, the distance between the end of the lens and the subject (working distance) is approximately 3 cm.
    2 Rotate the zoom ring past the 
    telephoto end (70 mm) into 
    the macro range indicated by 
    the yellow line.3 Release the macro switch.1 Slide the macro switch (zoom 
    ring lock lever) to MACRO. 
    Keep your finger on the lever 
    so that it does not slide back 
    to its normal position.
    6. Close-up Shooting
    The yellow line on the distance scale indicates the range in which image degradation is minimal during 
    close-up shooting.* The following procedure shows how to focus within the range indicated by the 
    yellow line in order to capture photos with high definition.
    * However, maximum magnification is 0.5x when shooting within the range indicated by the yellow line on the distance scale.
    We recommend using a tripod for close-up (macro) shooting.
    2 Adjust the zoom ring and 
    position the camera by 
    moving it forward or back. 
    Set the magnification 
    and obtain a rough focus 
    by using the zoom ring 
    to adjust the focusing 
    ●● A rough focus is obtained so 
    that the user can focus when 
    shooting within the range 
    indicated by the yellow line on 
    the distance scale.
    3 Press the shutter button 
    and focus using AF 
    or MF before shooting.
    ●● In order to achieve a sharp focus 
    in manual focus (MF) mode, 
    please use the magnified view 
    feature* which is found in cameras 
    that offer Live View shooting.
    * For information about this 
    see the camera’s 
    instruction manual. 
    In addition, please also 
    read the Live View shooting 
    cautions section found in the 
    camera’s instruction manual.
    1 After setting the zoom 
    ring to macro, position the 
    focusing ring so that the 
    indicator appears in the 
    center of the yellow line on 
    the distance scale.
    ●● Maximum magnification is 
    0.5x when shooting within the 
    range indicated by the yellow 
    line on the distance scale. 
    When shooting at a higher 
    magnification, please move 
    out of the range indicated by 
    the yellow line to focus.
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