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Canon lens EF 70300mm f4556 DO IS USM User Manual

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    8.Infinity Compensation Mark9. Infrared Index
    Infinity compensation markDistance index
    The infrared index corrects the focus setting
    when using monochrome infrared film. Focus on
    the subject manually, then adjust the distance
    setting by moving the focusing ring to the
    corresponding infrared index mark.
    The infrared index position is based on a
    wav elength of 800 nm.
    The compensation amount differs depending on
    the focal length. Use the indicated focal length as
    a guide when setting the compensation amount.
    • Be sure to observe the manufacturer’s
    instructions when using infrared film.
    • Use a red filter when you take the picture.
    Some EOS cameras cannot use infrared film. See
    the instructions for your EOS camera.
    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 on subjects at
    infinity distance, look through the viewfinder while
    rotating the focusing ring.
    ou can attach filters to the filter mounting thread
    on the front of the lens.
    10. Filters (Sold separately)11.Extension Tubes (Sold separately)
    Camera-to-SubjectMagnificationDistance (mm)Near Far Near Far
    EF12 ll 70mm 478 616 0.23
    300mm 1170 7626 0.26 ×0.04×
    EF25 ll 70mm 354 398 0.46
    300mm 1024 3890 0.35 ×0.09×
    •If you need a polarizing filter, use the Canon
    Circular Polarizing Filter (58mm).
    •T o adjust the polarizing filter, first remove the
    lens hood.
    Y ou can attach Extension Tube EF12 II or EF25
    II for magnified shots. The shooting distance and
    magnification are shown below.
    Manual focusing is recommended for accurate
    f ocusing.
    12.Close-up Lenses (Sold separately)
    Attaching a 250D or 500D (58mm) Close-up
    Lens enables close-up photography.
    Compatibility with Close-up Lenses is as follows.• Close-up Lens 250D:
    Can be used at the 70mm end (magnification
    0.29x - 1.18x)
    • Close-up Lens 500D:
    Can be used (magnification 0.14x - 0.65x)
    Manual focusing is recommended for accurate
    Focal Length & Max. Aperture70 – 300 mm, f/4.5 – 5.6
    Lens Construction18 elements in 12 groups
    Min. Aperturef/32 – 40*
    Angle of ViewDiagonal: 34° – 8°15’ Vertical: 19°30’ – 4°35’ Horizontal: 29° – 6°50’
    Min. Focusing Distance1.4 m / 4.6 ft.
    Max. Magnification & Field of view0.19 ×(at 300 mm), 432  × 650 – 123  × 183 mm / 16.8 × 25.4 – 4.8 × 7.1 inch (at 1.4 m )
    Filter Diameter 58 mm
    Max. Diameter & Length82.4 ×99.9 mm / 3.2  ×3.9 inch
    W eight 720 g / 25.2 oz 
    Lens Hood ET-65B
    Lens CapE-58U/E-58 II
    Case LP1116
    * This figure is for models that display apertures by 1/3 increment. For models that display apertures by 1/2
    increment, it is f/32-38.
    • The lens length is measured from the mount surface to the front end of the lens. Add 21.5 mm to include the
    E-58U lens cap and dust cap, and 24.2 mm for the E-58 II.
    • The size and weight listed are for the lens only, except as indicated.
    • The EF1.4X II/EF2X II extenders cannot be used with this lens.
    • Aperture settings are specified on the camera. The camera automatically compensates for variations in the
    aperture setting when the camera is zoomed in or out.
    • All data listed is measured according to Canon standards.
    • Product specifications and appearance are subject to change without notice.
    							©CANON INC. 2004
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