FujiFilm X100S Owner's Manual page 38

Taking Photographs
4
Focus.
Frame the picture with your subject in the center of the display and press the shutter
button halfway to focus.
R If the subject is poorly lit, the AF-assist illuminator may light (
If the camera is able to focus, it will beep twice and focus area will glow green. Focus and exposure will
lock while the shutter button is pressed halfway.
If the camera is unable to focus, the focus frame will turn red, and s will be displayed. If the subject
is close to the camera, select macro mode and try again (P31).
5
Shoot.
Smoothly press the shutter button the rest of the way down to take the picture.
24
P 78).