Canon EOS 90D Advanced User's Manual page 73

The camera shoots in single shooting mode regardless of the drive mode
o
setting.
Tapping the screen focuses with [One-Shot AF] regardless of the AF
o
operation setting.
Tapping on the screen in magnifi ed view will not focus or take the picture.
o
Regardless of where you tap to shoot with the Fish-eye eff ect Creative fi lter,
o
your shots will be in focus at the AF point in the center of the screen.
Touch Shutter has no eff ect when you shoot with the Miniature eff ect Creative
o
fi lter.
If you shoot with [ z : Image review] set to [Hold], you can press the shutter
o
button halfway to take the next shot.
In bulb exposures, tap once to start exposure and again to stop exposure. Be
o
careful not to shake the camera when tapping on the screen.
Viewing the Screen as You Shoot (Live View Shooting)
73