Canon EOS 200D Instruction Manual page 225

x Shooting with the Touch Shutter
Even if you set the drive mode to <i>, the camera will still shoot in the
single shooting mode.
Even if [AF operation] is set to [Servo AF], tapping on the screen will
focus on the image with [One-Shot AF].
Tapping on the screen in magnified view will not focus or take the picture.
If the Fish-eye effect Creative filter is set, the camera will focus using the
AF point at the center of the screen regardless of the point you tap on.
If the Miniature effect Creative filter is set, the Touch Shutter does not
work.
You can also set the Touch Shutter with [z5: Touch Shutter] (the [z2]
tab in Basic Zone modes).
To shoot with bulb exposure, tap on the screen twice. The first tap on the
screen will start the bulb exposure. Tapping it again will stop the
exposure. Be careful not to shake the camera when tapping on the
screen.
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