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Canon 300mm F28 Manual

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    6. Power Focus (PF) Mode
    Using the playback ring enables smooth focus change.
    This is a useful feature for changing focus when shooting movies.
    When the playback ring is rotated in a certain direction, focus changes in the same direction as when 
    the focusing ring is rotated.      
    You can make a 2-step change in focus shift speed depending on the angle that the playback ring is 
    rotated to.
      With the focus preset switch set to OFF, set the focus mode 
    switch to PF. Rotate the playback ring to 
    change the focus.
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    7. Image Stabilizer
    You can use the image stabilizer in AF, PF, or MF mode.
     Set the STABILIZER switch 
    to ON.
    If you are not going to use the 
    OO
    image stabilizer function, set 
    the switch to OFF.
      Select the stabilizer mode.
    MODE 1: Corrects vibrations in 
    OO
    all directions. It is mainly effective 
    for shooting still subjects.
    MODE 2: Corrects vertical 
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    camera shake during 
    following shots in a horizontal 
    direction, and corrects 
    horizontal camera shake 
    during following shots in a 
    vertical direction.
    MODE 3: Corrects vibration only 
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    during exposure. During panning 
    shots, corrects vibration during 
    exposure only in one direction 
    the same as MODE 2.
      First press the shutter 
    button down halfway, then 
    press down all the way to 
    take the picture.
    MODE 1, 2: Press the 
    OO
    shutter button down halfway 
    to stabilize the image in 
    the viewfinder and enable 
    stabilization.
    MODE 3: Press the shutter 
    OO
    down halfway to initiate 
    computation of stabilization, 
    then press down all the way 
    to enable stabilization.
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    8. Tips on Using the Image Stabilizer
    In semi-darkened areas such as indoors or 
    OO
    outdoors at night.
    In locations where flash photography is 
    OO
    prohibited, such as art museums and theater 
    stages.
    In situations where your footing is uncertain.
    OO
    In situations where fast shutter settings 
    OO
    cannot be used. When panning subjects in motion. 
    OO
     
    O MODE 3
    Since camera shake is stabilized only during 
    OO
    exposure, following a subject is easier such as 
    when shooting a fast and irregularly moving 
    player during sports photography.
    O MODE 1 O MODE 2
    OFF
    ON
    OFFON
    The image stabilizer for this lens is effective for hand-held shots in the following conditions.
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    Tips on Using the Image Stabilizer
    The Image Stabilizer cannot compensate for a 
    OO
    blurred shot caused by a subject that moved.
    Set the STABILIZER switch to OFF when you 
    OO
    are taking pictures using the Bulb setting (long 
    exposures). If the STABILIZER switch is set to 
    ON, the image stabilizer function may introduce 
    errors.
    The Image Stabilizer might not be fully effective 
    OO
    in the following cases:
    •    You shoot from a violently moving vehicle.
    •   
    You move the camera dramatically for a 
    panning shot in Mode 1.
    The Image Stabilizer consumes more power than 
    OO
    normal shooting, so fewer shots can be taken if 
    you use the function.
    The image stabilizer operates for about two 
    OO
    seconds even when your finger is off the 
    shutter button. Do not remove the lens while 
    the stabilizer is in operation. This will cause a 
    malfunction.
    With the EOS-1V/HS, 3, ELAN 7E/ELAN 
    OO
    7/30/33, ELAN 7NE/ELAN 7N/30V/33V, ELAN II/
    ELAN II E/50/50E, REBEL 2000/300, IX, IX Lite/
    IX7, and D30, the Image Stabilizer will not work 
    during self-timer operation.Using a tripod also stabilizes the image.  
    OO
    However, depending on the kind of tripod and 
    shooting conditions, sometimes it may be better 
    to turn off the Image Stabilizer function.
    The stabilizer is equally effective for hand-
    OO
    held photography and photography with a 
    monopod. The Image Stabilizer effect may be 
    reduced, however, depending on the shooting 
    environment.
    The Image Stabilizer also operates when the 
    OO
    lens is used with extension tube EF12 II or EF25 
    II or the extender EF1.4× III or EF2× III.
    Depending on the camera there may be image 
    OO
    shake, such as after releasing the shutter. 
    However, this does not affect shooting.
    If you set the camera’s Custom Function to 
    OO
    change the assigned button to operate the AF, 
    the Image Stabilizer will operate when you press 
    the newly assigned AF button.
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    10. Hood
    The special hoods that come with all these 
    lenses cut out unwanted light and protect the 
    front of the lens from rain, snow, and dust.
    To attach the hood, loosen the hood lock knob 
    by turning it counterclockwise. Fit the hood onto 
    the lens’s hood mount, and tighten the lock knob 
    to fix it in place. Use the same procedure, in 
    reverse, to remove the hood.
    9.  
    Infinity Compensation 
    Mark
    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.
    Infinity compensation mark
    Distance index
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    11. Fitting the Lens Cap
     With the lock knob at the 
    opening in the cap, close 
    the fastener to fix the cap in 
    place as shown.
    Can also be attached to the 
    OO
    front of the hood when using 
    the lens.
      Lift the hook and loop 
    fastener, and fit the cap so 
    that the lock knob rides up 
    the slot in the cap.  Reverse the lens hood, slip 
    it over the lens, and tighten 
    the lock knob to fix it in 
    place.
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    12. Case
    Put the lens away as follows.
     Reverse the lens hood, slip it over the lens, 
    and attach the lens cap. 
     Position the tripod mount towards you as 
    shown and place it in the case.
      Place so that the hood’s lock knob rests in 
    the slot near you.
    Keyhole
    Strap
    Slot
    Lid
    Hinge
    Lever
      Fold the strap and fit it into the space near 
    the case hinges.
     Fasten the lens securely with the strap.
     Close the lid, and then push the lever while 
    holding the lid from above to lock.
    Do not sit on top of the lens case.
    OO
    Place the lens in the position intended for it.
    OO
    The illustration shows the EF400mm f/2.8L IS II USM.
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    13.  
    Using the Tripod 
    Mount
    A tripod or monopod attaches to the tripod 
    mount on the lens.
    Adjusting the Tripod MountBy loosening the orientation locking knob on the 
    tripod mount you can rotate the camera to set 
    the image for any vertical or horizontal position.
    Replacing the Tripod Mount (EF400mm 
    f/2.8L IS II USM only)
    Replacement with the included monopod mount 
    can be done at a Canon Service Center at cost.
    Since the mount requires special fastening, as 
    a safety precaution, do not replace the mount 
    yourself.
    14.   
    Security Slot
    An attachment slot is provided for a wire-type 
    security lock. The slot is located under the cover 
    for the orientation locking knob.
    A wire-type security lock can be purchased 
    separately.
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    15. Drop-In Filters
    A 52(WII)-series drop-in gelatin filter holder with 
    a glass filter is included with the lens. The drop-
    in filter holder can be used fitted with a gelatin 
    filter (sold separately).
    14mm14mm
    47mm
    47mm
    
    To remove the drop-in filter, press in the left 
    and right lock buttons and pull the filter holder 
    straight up out of the slot.
    To install the drop-in filter, push the filter holder 
    straight down into the slot until it clicks into place.
    The filter holder can be installed facing either 
    OO
    forwards or backwards.The Drop-In Screw-Type Filter Holder 52(WII) and 
    Drop-In Circular Polarizing Filter PL-C52(WII) are 
    also available (sold separately).
    Because the lens optics are designed to include a 
    glass filter, you must always install the filter holder, 
    even if no gelatin filter is fitted.
     Lift up the holder’s retaining plate.
     Cut the gelatin filter as shown and mount it in 
    the holder.
     Return the retaining plate to its closed 
    position.
    
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    16. Extenders (Sold Separately)
    Lens specifications when using extender EF1.4× II/III or EF2× II/III are as follows.
    EF300mm f/2.8L IS II USM EF400mm f/2.8L IS II USM
    EF1.4× II/III EF2× II/III EF1.4× II/III EF2× II/III
    Focal length (mm) 420600 560800
    Aperture f/4 – 45 f/5.6 – 64 f/4 – 45 f/5.6 – 64
    Angle of view Diagonal
    5° 55’4° 10’ 4° 25’ 3° 5’
    Vertical 3° 15’2° 20’ 2° 25’1° 40’
    Horizontal 4° 55’3° 30’ 3° 40’2° 35’
    Maximum magnification (×) 0.250.36 0.250.35
    Attach the extender to the lens, and then attach the lens to the camera. To remove it, reverse the order. 
    OO
    Errors may occur if you attach the extender to the camera first.
    When shooting with EOS A2/A2E/5 fitted with either the EF300mm f/2.8L IS II USM or EF400mm f/2.8L IS 
    OO
    II USM, use –0.5 step exposure compensation when using extender EF1.4× II, and use –1 step exposure 
    when using extender EF2× II.
    Extenders cannot be used more than one at a time.
    OO
    AF is possible with extender EF1.4× II/III or EF2× II/III.
    OO
    When an extender is attached, the AF speed will become slower to retain proper control.
    OO
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