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Canon lens EF 100mm f28L Macro IS USM User Manual

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    							EF100mm f/2.8L MACRO IS USM
    							The Canon EF100mm f/2.8L MACRO IS USM
    lens is a macro lens dedicated to Canon EOS
    cameras. It is equipped with an Image
    Stabilizer and can shoot close-ups up to 1:1
    as well as normal shots.
    • IS stands for Image Stabilizer.
    • USM stands for Ultrasonic Motor.ENG-1
    Thank you for purchasing a Canon product.
    Conventions used in this instruction
    Warning to prevent lens or camera malfunction
    or damage.
    Supplementary notes on using the lens and
    taking pictures.
    1. The Image Stabilizer provides the effect of having 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 and following
    2. And with the vibration gyro and acceleration sensor, the image stabilization is highly
    effective even for close-up shots.
    3. UD lens elements for excellent imaging performance. 4. Ultrasonic motor (USM) for quick and quiet
    Manual focusing is available after the subject comes
    into focus in autofocus mode (ONE SHOT AF).
    6. A truly round aperture hole results in a nicer background blur.
    7. A Canon macro flash makes it easy to take close-up pictures with a flash. The inner
    focusing mechanism enables AF photography
    while the macro flash is attached.
    8. Tight seal structure ensures excellent dust- proof and drip-proof performance.
    *Based on [1/focal length] second.
    To   prevent blur caused by camera shake during normal
    shooting, the shutter speed should be the reciprocal of
    the current focal length (1/focal length) or faster.
    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
    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 (→ 7)
    Filter mounting
    thread (→ 14, 15) Focusing ring (→ 5) Focusing distance range selection switch (→ 5)
    Image stabilizer switch (→ 10) Focus mode switch (→ 5) Distance scale (→ 6)
    Contacts (→ 4)
    Lens mount index (→ 4)
    Tripod mounting location (→ 13) Rubber ring (→ 4)
    or 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.
    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.
    2. Setting 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
    Y ou can switch the focusing distance range to
    one of three settings: FULL (0.3 m/1.0 ft. to
    infinity), 0.3 m/1.0 ft. to 0.5 m/1.6 ft., or 0.5 m/1.6
    ft. to infinity.
    By setting the suitable focusing distance range,
    the actual autofocusing time can be shorter.
    3.Switching the Focusing
    Distance Range
    4.Infinity Compensation Mark
    Infinity compensation markDistance index
    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 L mark is
    aligned with the distance indicator on the
    distance scale.
    F or accurate manual focusing of subjects at
    infinity, look through the viewfinder or look at the
    magnified image* on the LCD screen while
    rotating the focusing ring.
    * For cameras with Live View shooting capability.
    5. Hood
    The ET-73 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
    grasp the rim of the hood to turn it.
    • Remove the hood when using the macro flash.
    6. Picture Taking
    Normal Photography
    The lens can be used as a medium-telephoto
    lens for normal photography such as portraits.
    Closeup Photography
    Close-up photos up to 1x (life-size) magnification
    are possible. The minimum focusing distance of
    30 cm is the distance from the subject to the
    focal plane. The working distance from the front
    of the lens to the subject is about 14 cm.
    Fo r normal close-up shooting, the higher the
    magnification, the faster the shutter speed must
    be to prevent blur caused by camera shake.
    Although it depends on the shooting conditions,
    usually the shutter speed must be at least one or
    two stops faster than normal.
    F or a shooting magnification of 0.5x, this lens
    provides the effect of a shutter speed faster by
    about three stops. For 1x, it will be about two
    stops faster.*
    * Depending on shooting conditions.
    Since macro shots have a very shallow depth of
    field, focus carefully to obtain proper sharpness.
    • The magnification refers to the ratio between the
    subject’s size and the corresponding image size
    on the focal plane. On the distance index, it is
    indicated as 1:x.
    •T o check the depth of field, press the cameras
    depth-of-field preview button.
    7. About Exposure
    Setting the Exposure
    When taking photographs using TTL metering,
    no exposure compensation is necessary to meter
    the light coming through the lens.
    With TTL metering, AE (autoexposure) is
    possible at all focusing distances. Just set the
    desired picture-taking mode, then check the
    shutter speed and aperture before taking the
    Magnification and Effective f-
    The aperture displayed by the camera assumes
    that the focus is set to infinity. The actual
    aperture (effective f-number) becomes darker
    (effective f-number increases) at closer focusing
    distances (magnification increases). This does
    not cause exposure problems for normal picture-
    taking. However, for closeup photography, you
    cannot ignore the change in the effective f-
    • The correct exposure for a close-up shot largely
    depends on the subject. Therefore, try to bracket
    the exposure for the same subject.
    • Using aperture-priority AE (Av ) or Manual (M)
    picture-taking modes are recommended for
    macro photography as it is easy to adjust depth
    of field and exposure in these modes.
    Magnification 1 : 5 1 : 3 1 : 2 1 : 1.5 1 : 1
    Effective f/No. 3.6 4.1 4.6 5.0 5.9
    Exposure Factor  + +1 +1 +1 +2
    (stops)* + +1 +1 +2
    *Upper values: 1/3 stops. Lower values: 1/2 stops.
    When you use a handheld exposure meter to set
    the exposure, you must take into account the
    e xposure factor shown in the following table.
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