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Canon lens EF 2470mm f28L II USM User Manual

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    EF24-70mm f/2.8L II USM
    Thank you for purchasing a Canon product.
    Canon’s EF24-70mm f/2.8L II USM is a high-
    performance standard zoom lens, for use with EOS 
    ●●“USM” stands for Ultrasonic Motor.
    1. Use of super UD lens elements, UD lens 
    elements, and two types of aspherical lens 
    elements giving superior definition.
     a fluorine coating on the foremost and 
    rearmost lens surfaces allows adhered dirt to be 
    removed more easily than before.
     motor (USM) for fast, quiet autofocus.
     l focusing is available after the subject 
    comes into focus in autofocus mode (ONE 
    SHOT AF).
     r aperture for producing beautiful 
    softfocus images.
     ight seal structure ensures excellent dustproof 
    and drip-proof performance.
     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 
    or damage.
     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.
    the separation between the equipment and 
    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 (→ **).
    Distance scale (  8)
    Focus mode switc\f ( 6)
    Hood mount ( 9)
    \bens mount index ( 5)Contacts
    ( 5)
    Rubber ring
    ( 5)
    Zoom ring ( 6)
    Filter Mounting T\fr\wead
    ( 10) Focusing ring ( 6) Zoom ring lock leve\wr
    ( 7)
    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 
    widest position (24 mm).
    The zoom ring can only be locked at maximum wide angle.
    5.  Infinity Compensation 
    For accurate focusing in MF on subjects at infinity 
    distance, look through the viewfinder while rotating 
    the focusing ring.
    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 distance 
    scale L mark is aligned with the distance index.
    Distance indexInfinity compensation mark
    6. Hood
    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 hood’s 
    stop position mark.●Removing
    To remove the hood, hold down the button on 
    the side and turn the hood in the direction of the 
    arrow until the position mark on the hood aligns 
    with the red dot. The hood can be reverse-
    mounted on the lens for storage.
    If the hood is not attached properly, vignetting (darkening of the perimeter of the picture) may occur. 
    ●● 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 EW-88C hood cuts out unwanted light and protects the front of the lens from rain, snow, and 
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