Canon EOS Rebel T5 18-55 IS II Kit - Manual (Page 173)

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3 Menu Function Settings
kShutter/AE lock button
You can change the function assigned to the shutter button’s halfway
position and to the AE lock button.
• AF/AE lock:
Normal function. Press the shutter button halfway to execute AF.
Press the button for AE lock.
• AE lock/AF:
Press the shutter button halfway for AE lock. For AF, press the
button. Convenient when you want to focus on, and meter at
different parts of the picture.
• AF/AF lock, no AE lock:
Press the shutter button halfway to execute AF. While you
autofocus by pressing the shutter button halfway, you can pause
the autofocus by holding down the button. You can resume
the autofocus by letting go of the button. AE lock is not
possible.
• AE/AF, no AE lock:
Press the shutter button halfway for metering. For AF, press the
button. AE lock is not possible.
kHighlight tone priority
If [Enable] is set, highlight detail will be improved. The dynamic
range is expanded from the standard 18% gray to bright highlights.
The gradation between the grays and highlights becomes smoother.
The settable ISO speed range will be ISO 200 - ISO 6400. The Auto
Lighting Optimizer will also be set automatically to [Disable] and
cannot be changed.
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