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Canon Eos Rebel T4i 650d Instruction Manual

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    3 Appending Dust Delete Data N
    3Photograph a solid-white object.
     At a distance of 20 cm - 30 cm (0.7 ft. 
    - 1.0 ft.), fill the viewfinder with a 
    patternless, solid-white object and 
    take a picture.
    X
    The picture will be taken in aperture-
    priority AE mode at an aperture of f/22.
      Since the image will  not be saved, the 
    data can still be obtained even if there 
    is no card in the camera.
    X
    When the picture is taken, the camera 
    will start collecting the Dust Delete 
    Data. When the Dust Delete Data is 
    obtained, a message will appear. Select 
    [
    OK], and the menu  will reappear.
     If the data was not obtained 
    successfully, a message to that effect 
    will appear. Follow  the “Preparation” 
    procedure on the pr eceding page, then 
    select [
    OK]. Take the picture again.
    After the Dust Delete Data is obt ained, it is appended to all the JPEG 
    and RAW images captured thereafter. Before an important shoot, it is 
    recommended to update the Dust Dele te Data by obtaining it again.
    For details about using Digital Phot o Professional (provided software, 
    p.350) to erase dust spots, refer to the Software Instruction Manual 
    (p.352) on the Software  Instruction Manual CD-ROM.
    The Dust Delete Data appended to the  image is so small that it hardly 
    affects the image file size.
    About the Dust Delete Data
    Be sure to use a solid-white object such  as a new sheet of white paper. If the 
    paper has any pattern or design, it ma y be recognized as dust data and 
    affect the accuracy of the du st deletion with the software.
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    Dust that could not be removed by the automatic sensor cleaning can 
    be removed manually with a blower,  etc. Before cleaning the sensor, 
    detach the lens from the camera.
    The surface of the image sensor  is extremely delicate. If the 
    sensor needs to be cleaned directly, having it done by a Canon 
    Service Center is recommended.
    1Select [Sensor cleaning].
      Under the [ 53] tab, select [Sensor 
    cleaning], then press < 0>.
    2Select [Clean manually].
      Select [Clean manually], then press 
    .
    3Select [OK].
      Select [OK ], then press < 0>.
    X In a moment, the reflex mirror will 
    lockup and the shutter will open.
    4Clean the sensor.
    5End the cleaning.
      Set the power switch to .
    3 Manual Sensor Cleaning N
    If you use a battery, make sure it is fully charged. If the battery grip with size-
    AA/LR6 batteries is attached, manual  sensor cleaning will not be possible.
    For the power source, using AC Adapter Kit ACK-E8  (sold separately) is 
    recommended.
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    3 Manual Sensor Cleaning N
     While cleaning the sensor, never  do any of the following. If the 
    power is cut off, the shutter will  close and the shutter curtains and 
    image sensor may get damaged.
    •  Setting the power switch to < 2>.
    •  Opening the battery compartment cover.
    •  Opening the card slot cover.
      The surface of the image  sensor is extremely delicate. Clean the sensor 
    with care.
      Use a plain blower without any brus h attached. A brush can scratch the 
    sensor.
      Do not insert the blower tip inside th e camera beyond the lens mount. If 
    the power is turned off, the shutter  will close and the shutter curtains or 
    reflex mirror may get damaged.
      Never use canned air or gas to clea n the sensor. The blowing force can 
    damage the sensor or the spray  gas can freeze on the sensor.
      If the battery level becomes low whil e you clean the sensor, the beeper 
    will sound as a warning.  Stop cleaning the sensor.
      If a smudge that cannot be removed  with a blower remains, having the 
    sensor cleaned by a Canon Se rvice Center is recommended.
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    Wireless FlashPhotography
    You can use the built-in flash 
    for wireless flash shooting.
    The camera’s built-in flash  can work as a master unit 
    with Canon Speedlites with  a wireless slave feature and 
    wirelessly trigger the Sp eedlite(s) to fire.
    Canceling the slave unit’s auto power off
    To cancel the slave unit’s auto power off, press the 
    camera’s < A> button. If you are using manual flash 
    firing, press the slave unit’s te st firing (PILOT) button to 
    cancel the auto power off.
    Be sure to also read the in formation about wireless flash 
    photography in th e Speedlite’s instruction manual.
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    Regarding your Speedlite (slave unit), refer to its instruction manual and 
    set it as follows. The settings othe r than the ones below for the slave 
    unit’s control are all set with the  camera. Different types of Canon 
    Speedlite slave units can be used and controlled together.
    (1) Set the Speedlite as a slave unit.
    (2) Set the Speedlite’s transmission channel to the same channel 
    as set on the camera. *
    1
    (3) If you want to set the flash ratio  (p.232), set the slave unit ID.
    (4)Position the camera an d slave unit(s) within the range shown below.
    (5) Face the slave unit’s wirel ess sensor toward the camera. *2
    *1: If the Speedlite does not have a transmissi on channel setting function, the camera 
    can work with any channel.
    *2: In small rooms, the slave unit may work even if its wireless sensor does not face the  camera. The camera’s wireless signals can bounce off the walls and be received by 
    the slave unit. When using an EX-series Speedlite with fixed flash head and wireless 
    sensor, take pictures to make sure it can fire.
    Using Wireless FlashN
    Slave Unit Settings and Position
    Approx.10 m
    (32.8 ft.)
    Approx. 7 m
    (23.0 ft.)
    Approx. 5 m(16.4 ft.) Approx. 7 m
    (23.0 ft.)
    Approx.
    80°
    Example of Wireless Flash Set-up
    Indoors
    Outdoors
    The camera’s master unit function cannot be used  for wireless flash 
    shooting with radio transmission.
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    The basics of easy, fully automatic wireless flash shooting are explained 
    below.
    Steps 1 to 4 and 6 apply to all 
    wireless flash shooting. Therefore, 
    these steps are omitted in the other 
    wireless flash setups explained on 
    the pages hereafter.
    1Press the  button to raise the 
    built-in flash.
      For wireless flash shooting, be sure 
    to raise the built-in flash.
    2Select [Flash control].
     Under the [ z1] tab, select [Flash 
    control ], then press < 0>.
    3Select [Evaluative].
      For [ E-TTL II meter. ], select 
    [Evaluative ], then press < 0>.
    Easy Wireless Flash Shooting
    Fully Automatic Shooting with One External Speedlite
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    Easy Wireless Flash Shooting
    4Select [Built-in flash settings].
     Select [Built-in flash settings ], then 
    press < 0>.
    5Select [EasyWireless].
      Under [Built-in flash ], select 
    [EasyWireless ], then press .
    6Set [Channel].
      Set the transmission channel (1-4) to 
    the same one as the slave unit.
    7Take the picture.
     Set the camera and take picture in 
    the same way as with normal 
    shooting.
    8Exit the wireless flash shooting.
     For [ Built-in flash ], select 
    [NormalFiring ].
     Setting [ E-TTL II meter. ] to [Evaluative ] is recommended.
      Even though the firing  of the built-in flash is disabled when 
    [ EasyWireless ] is set, it will still fire a smal l flash to control the slave unit. 
    Depending on shooting conditions, the  flash fired to control the slave unit 
    may appear in the picture.
      Firing a test flash is not po ssible with the slave unit.
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    Easy Wireless Flash Shooting
    You can have multiple slave units fire as if they were a single Speedlite. 
    This is convenient when you need a large flash output.
    Basic settings:
    Flash mode : E-TTL II
    E-TTL II meter. : Evaluative
    Built-in flash : EasyWireless
    Channel : (Same as slave units)
    All the slave units will fire at the same 
    output and be controlled to obtain a 
    standard exposure.
    No matter what the slave ID is (A, B, or 
    C), all the slave units will fire as one 
    group.
    If the flash exposure looks too dark  or too bright, you can set flash 
    exposure compensation to adjus t the slave units’ flash output.
      Select [Flash exposure 
    compensation], then press < 0>.
     
    If the flash exposure  is too dark, press the 
     key to increase the flash exposure 
    and make it brighter. If the flash exposure is 
    too bright, press the <
    Y> key to decrease 
    the flash exposure  and make it darker.
    Fully Automatic Shooting with  Multiple External Speedlites
    Flash Exposure Compensation
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    This section describes fully automatic 
    wireless flash shooting with one external 
    Speedlite and the built-in flash.
    You can change the flash ratio between 
    the external Speedlite and built-in flash 
    to adjust how the shadows look on the 
    subject.
    On the menu screens, the  and 
    < 1 > icons refer to the external 
    Speedlite, and the < 3> and < 2> 
    icons refer to the built-in flash.
    1Select [CustWireless].
      Follow step 5 on page 228 to select 
    [CustWireless ], then press .
    2Select [Wireless func.].
      Under [Wireless func.], select 
    [0 :3], then press < 0>.
    3Set the desired flash ratio and 
    take the picture.
      Select [ 0:3 ] and set the flash ratio 
    within 8:1 to 1:1. Setting a flash ratio 
    to the right of 1:1 is not possible.
     
    If the built-in flash output is not enough, 
    set a higher ISO speed (p.90).
    Custom Wireless Flash Shooting
    Fully Automatic Shooting with One External Speedlite 
    and Built-in Flash
    The 8:1 to 1:1 flash ratio is equivalent  to 3:1 to 1:1 stops (1/2-stop increments).
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