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Canon lens Extender EF 14X III User Manual

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    © CANON INC. 2010
     ENGExtender EF1.4X III/ EF2X III
    q Lens mount index (on lens)
    w  Lens mount index (on camera)
    e  Lens release lever
    r  Contacts
    t  Rubber ring
    Usable lenses:
    ❇: Using an Extender with this lens may result in incorrect autofocus.If your camera has an AF microadjustment function, do the AF microadjust\
    ment.If your camera does not have an AF microadjustment function, focus
    manually if the AF precision is way off.
    * For details on AF microadjustments, see the cameras instruction manual.\
    * Refer to the camera and lens instruction booklets to see if there are an\
    y AF
    compatibility limitations.
    * The maximum aperture is indicated in half-stop increments.
    Thank you for purchasing a Canon product.
    The high-performance Canon Extender EF1.4X III and Extender EF2X III inc\
    the focal length of the attached EF lens by 1.4X and 2X respectively.
    a Safety Precautions
    • Do not look at the sun or a bright light source through the lens with th\
    extender attached, or with a camera with the extender and lens
    attached.  Doing so could result in visual impairment. In particular, never
    look at the sun directly through the lens with the extender attached, be\
    that could result in loss of vision.
    • Do not leave the lens with the extender attached, or a camera with the
    extender and lens attached in the sun without the lens cap on.  That may
    result in concentrating the suns rays, causing a fire.
    • Do not leave the extender in excessive heat such as in a car in direct
    sunlight.  High temperatures can cause the extender 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 mu\
    st accept any interference received,
    including interference that may cause undesired operation.
    Do not make any changes or modifications to the equipment unless otherwi\
    se specified in the instructions.
    If such changes or modifications should be made, you could be required t\
    o 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 reasonabl\
    e protection against harmful
    interference in a residential installation. This equipment generates, us\
    es and can radiate radio frequency
    energy and, if not installed and used in accordance with the instruction\
    s, may cause harmful interference to
    radio communications.
    However, there is no guarantee that interference will not occur in a par\
    ticular 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 inter\
    ference 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 help.
    This Class B digital apparatus complies with Canadian ICES-003.
    Mounting and dismounting the Extender
    First attach the Extender to the lens, then attach it to the camera. To \
    detach it,
    follow the same procedure in reverse.
    To detach the Extender from the lens, slide the lens release lever as sh\
    own by
    the arrow, then turn the Extender counterclockwise.
    EF1.4X III
    189mm f/2.8
    252mm f/4.5
    280mm f/4
    280mm f/4
    280mm f/2.5
    280mm f/2.8
    420mm f/5.6
    420mm f/5.6
    420mm f/4
    420mm f/4
    560mm f/8
    560mm f/5.6
    560mm f/4
    560mm f/4
    560mm f/4
    700mm f/6.7
    700mm f/5.6
    840mm f/5.6
    840mm f/5.6
    1120mm f/8
    140-560mm f/6.7-8 98-280mm f/5.6
    98-280mm f/5.6
    98-280mm f/4
    98-280mm f/4
    98-280mm f/4 420mm f/4
    560mm f/4
    700mm f/5.6
    840mm f/5.6
    1680mm f/8EF2X III
    270mm f/4
    360mm f/6.7
    400mm f/5.6
    400mm f/5.6
    400mm f/3.5
    400mm f/4
    600mm f/8
    600mm f/8
    600mm f/5.6
    600mm f/5.6
    800mm f/11
    800mm f/8
    800mm f/5.6
    800mm f/5.6
    800mm f/5.6
    1000mm f/9.5
    1000mm f/8
    1200mm f/8
    1200mm f/8
    1600mm f/11
    200-800mm f/9.5-11
    140-400mm f/8
    140-400mm f/8
    140-400mm f/5.6
    140-400mm f/5.6
    140-400mm f/5.6 600mm f/5.6
    800mm f/5.6
    1000mm f/8
    1200mm f/8
    2400mm f/11
    Focal Length & Maximum Aperture
    EF135mm f/2L USM
    EF180mm f/3.5L Macro USM
    EF200mm f/2.8L USM
    EF200mm f/2.8L II USM
    EF200mm f/1.8L USM ❇
    EF200mm f/2L IS USM
    EF300mm f/4L USM
    EF300mm f/4L IS USM
    EF300mm f/2.8L USM ❇
    EF300mm f/2.8L IS USM
    EF400mm f/5.6L USM
    EF400mm f/4 DO IS USM
    EF400mm f/2.8L USM ❇
    EF400mm f/2.8L II USM ❇
    EF400mm f/2.8L IS USM
    EF500mm f/4.5L USM ❇
    EF500mm f/4L IS USM
    EF600mm f/4L USM ❇
    EF600mm f/4L IS USM
    EF800mm f/5.6L IS USM
    EF100-400mm f/4.5-5.6L IS USM
    EF70-200mm f/4L USM
    EF70-200mm f/4L IS USM
    EF70-200mm f/2.8L USM
    EF70-200mm f/2.8L IS USM
    EF70-200mm f/2.8L IS II USM
    EF300mm f/2.8L IS II USM
    EF400mm f/2.8L IS II USM
    EF500mm f/4L IS II USM
    EF600mm f/4L IS II USM
    EF1200mm f/5.6L USM ❇
    Maximum Aperture with the Extender
    When Extender EF1.4X III is attached, the lens maximum aperture will be \
    (darker) by 1 stop. With Extender EF2X III, the maximum aperture will \
    be smaller
    by 2 stops. In any case, the camera will compensate the exposure automat\
    •Do not attach two or more Extenders on the same camera. Doing so will
    degrade the optical performance and the camera will not be able to obtai\
    proper exposure readings.
    To enhance water and dust resistance, the Extender EF1.4X III and EF2X I\
    II have
    a rubber ring around the mount. As the lens is repeatedly mounted and de\
    the rubber ring will leave fine abrasion marks on the outside of the cam\
    era mount.
    This will not affect operation.
    The rubber ring can be replaced by a Canon service center (a fee will b\
    e charged).
    • Autofocusing slows down when the lens is used with an extender, in order\
    maintain the precision of autofocus control.
    The Extenders cannot be used with film cameras other than the EOS-1V. Us\
    an Extender with a film camera other than the EOS-1V may cause misoperat\
    Major Specifications
    Mount:  Canon EF mount (Electronically controlled)
    Lens construction: EF1.4X III: 7 elements in 3 groups
    EF2X III: 9 elements in 5 groups
    (Max. dia.  × length): EF1.4X III: 72.0 dia.  × 27.2 mm / 2.8 × 1.1 inch
    EF2X III: 72.0 dia.  × 52.7 mm / 2.8 × 2.1 inch
    Weight: EF1.4X III: approx. 225 g / 7.9 oz, EF2X III: approx. 325 g / 11.5 oz
    Case:  EF1.4X III/EF2X III: LP811
    * All specifications are based on Canons tests and measurements.
    * Product specifications and appearance are subject to change without noti\
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