Chapter 1
Setting Up the EOS Rebel T2i/550D
5
Main dial
Shutter button
ISO speed button
Focal plane mark
Hot shoe
Mode dial
Power switch
1.2
Rebel T2i/550D top camera controls
CROSS REF
Custom Functions are detailed in Chapter 4.
X
Main dial.
Turning this dial selects a variety of settings and options. Turn the
Main dial to manually select an AF (autofocus) point after pressing the AF-point
Selection/Enlarge button; and to set the aperture (f-stop) in Av mode, the shutter
speed in Tv and Manual mode, and to shift the exposure program in P mode.
Additionally, you can use the Main dial to scroll among the camera menus.
X
Shutter button.
Pressing the Shutter button halfway sets the focus at the
active AF point. Simultaneously the camera determines the aperture (f-stop) and/
or shutter speed based on the current ISO setting. Pressing the Shutter button
completely makes the picture. In any mode except Direct Printing, you can also
half-press the Shutter button to dismiss the camera menus and image playback.
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4/12/10 1:41 PM
