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Canon lens EF 50mm f25 Compact Macro User Manual

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    EF100mm f/2.8
    Thank you for purchasing a Canon product.The EF50mm f/2.5 Compact macro is a macro lens that can be used for 
    standard shooting and for close-up shooting up to 1/2 × (0.5×). \
    This is a 
    standard macro lens for EOS cameras. Lifesize magnification (1×) is\
    possible by attaching the Life Size Converter EF sold separately.
    The Canon EF100mm f/2.8 Macro is a medium telephoto macro lens that 
    provides life-size close-up capability.
     Safety Precautions1. 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. 
    2.  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.
     Handling CautionsIf 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 airtigh\
    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.
    1. Mounting and Detaching the LensSee 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 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 properl\
    y,  align the lens mount index and the   index of the dust cap, and turn 
    clockwise. To remove it, reverse the order.
    2. Setting the Focus ModeTo 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. 
    •  Do not touch the rotating parts of the lens while AF is active.
    3.   Switching the Focusing Distance Range 
    (EF100mm f/2.8 Macro only)
    FULL:  Allows a focusing distance range of 0.31 m (Min. focusing 
    distance) to ¿ for standard shooting  a.
    LIMIT:  Allows a focusing distance range of 0.31 m (life-size) to 0.57 m  (0.25×) for close-up shots.  
    4. Close-up Photography (Macro Photography)Close-up photos are possible up to 0.5× maximum magnification with th\
    EF50mm f/2.5 Compact macro, and up to 1× (life-size) magnification \
    the EF100mm f/2.8 Macro. The focusing distance is the distance from the \
    subject to the film plane.
    When focusing, you can give priority to framing or to magnification.
    [Framing Priority]
    While looking through the viewfinder and framing the subject, focus with\
    the AF or MF mode.
    [Magnification Priority]
    (1) Set the lens’ focus mode switch to MF.(2) Set the magnification.While referring to the distance scale on the lens, turn the focusing rin\
    to the desired magnification.
    (3) Focus the subject.While looking through the viewfinder, move the camera forward or 
    back to find the point of focus.
    (4) Touch up the focus.Turn the focusing ring for fine focusing.
    •  Since macro shots have a very shallow depth of field, focus  carefully to obtain proper sharpness.
    •  To prevent camera shake, using a Remote Switch and tripod is  recommended (both sold separately).
    •  To check the depth of field, press the camera’s depth-of-field  preview button.
    Ô ƒ  Magnification scale (normal operation)Ô
    „ Distance scaleÔ
    … Depth-of-Field scaleÔ
    †  Magnification scale with Life Size Converter 
    EF attached (EF50mm f/2.5 only)
    Ô ‡ Distance indexÔ
    ˆ Focusing ringÔ
    ‰  Focus mode switchÔ
    Š  Lens mount indexÔ
    ‹ ContactsÔ
    Π Focusing distance range selector switch 
    (EF100mm f/2.8 Macro only)
    Macro Lenses 
    EF50mm f/2.5 Compact macro EF100mm f/2.8 Macro
    32 16 531ftm
    1.5 310
    32 16 531ftm
    1.5 310
    32 16 531ftm0.
    1.5 310
    32 16 531ftm
    CT1-8537-003  1208SZ © CANON INC. 2006
    5. 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 picture.
    When you use a handheld exposure meter to set the exposure, you must 
    take into account the exposure factor shown in the following table.
    EF50mm f/2.5 Compact macro lens only
    1:10 1:8 1:6 1:5 1:4 1:3 1:2.5 1:2
    Effective f/No. 1.21 1.27 1.36 1.44 1.56 1.78 1.96 2.25
    Exposure Factor 
    (stops) in ½ stops 0 +½
    in ¹� ³ stops 0
    ³ +1.0
    EF50mm f/2.5 with Life Size Converter EF
    Magnification 1:4 1:2 1:1.5 1:1.2 1:1
    Effective f/No. 1.64 1.87 2.16 2.49 2.86
    Exposure Factor 
    (stops) in ½ stops +½ +1.0 +1½
    in ¹�
    ³ stops
    ³ +1.0
    EF100mm f/2.8 Macro
    Magnification 1:4 1:3 1:2.5 1:2 1:1.5 1:1
    Effective f/No. 1.44 1.61 1.76 1.99 2.41 3.38
    Exposure Factor 
    (stops) in ½ stops +½ +1.0 +1½ +2.0
    in ¹�
    ³ stops
    ³ +²�
    ³ +1.0
    • The correct exposure for a close-up shot largely depends on the 
    subject. Therefore, it is recommended to take several shots of the 
    same subject at different exposures.
    •  When taking close-up shots, it is recommended to use aperture-
    priority AE (Av) or Manual (M) picture-taking modes, because depth o\
    field and exposure are easy to adjust in those modes.
    6. Depth-of-Field ScaleThe depth of field is the distance in front of and behind the plane of f\
    on the subject that appears sharp. The depth of field is indicated by th\
    area between the depth-of-field scale lines below the distance scale. 
    The numbers on the scale are F values (with the EF50mm f/2.5 Compact 
    •  The depth-of-field scale is an approximate indicator.
    7.  Infrared Index (EF50mm f/2.5 Compact macro only)The infrared index corrects the focus setting when using monochrome 
    infrared film. Focus on the subject in MF, then adjust the distance sett\
    by moving the focusing ring to the corresponding infrared index mark 
    ❻-Ⓐ, Ⓑ.•  Some EOS cameras cannot use infrared film. See the instructions for 
    your EOS camera.
    8. FiltersYou can attach filters to the filter mounting thread on the front of the\
    lens❼.• Only one filter may be attached.
    •  Use a polarizing Canon filter (52 mm).
    9. Specifications
    EF50mm f/2.5 EF100mm f/2.8
    Focal Length/Aperture 50mm, f/2.5 100mm, f/2.8
    Lens Construction 8 groups, 9 elements 9 groups, 10 elements 
    Angle of View Diagonal–46° 
    Focusing Distance 
    Ranges 0.23 to 
    ∞ m  
    (0.58 to ∞ inch) 0.31 to 
    ∞ m full (0.79 to ∞ inch) 
    0.31 to 0.57 m (0.8 to 
    0.14 inch) with limit 
    0.57 to 
    ∞ m (1.45 to ∞ inch) with limit
    Max. Magnification 0.5×/1× (with Life Size 
    Converter EF attached)1×
    Filter Diameter 52 mm
    Max. Diameter and 
    Length 67.6 × 63 mm  
    (2.7 × 2.5 inch)75 × 105.3 mm  
    (3 × 4.1 inch)
    Weight 280 g (9.8 oz)650 g (1.42 lb)
     The lens length is measured from the mount surface to the front end of 
    the lens. Add 21.5 mm to include the E-52 lens cap and dust cap, and 
    23.9 mm for the E-52 II.
    n  The size and weight listed are for the lens only, except as indicated.
    n  Aperture settings are specified on the camera.
    n  All data listed is measured according to Canon standards.
    n  Product specifications and appearance are subject to change without 
    n  Case and hood not provided with some models.
    n  Filters sold separately.
    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 
    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.
    •  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.
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