FujiFilm FinePix S100 Owner's Manual page 30

Basic Operation Guide
Command dial
Selects images or menus. Also, sets the sensitivity, exposure
compensation, aperture and continuous shooting modes together
with the "ISO," "D Exposure compensation" and "f Continuous
shooting" buttons.
D Exposure compensation button (p.66)
Used with the command dial to select the
exposure compensation value.
ISO (sensitivity) button (p.73)
Used with the command dial to select ISO setting.
Sync terminal (p.96)
Use this to connect flash units that require a sync
cable.
Focus ring (p.71)
The camera focuses on the subject using Manual focus mode.
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Mode dial (p.55)
Turn the mode dial to select shooting
mode.
B: Auto
: Film simulation bracketing
/ : Scene position
N: Programmed Auto
M: Shutter-priority Auto
<: Aperture-priority Auto
>: Manual
/ : Custom mode
r: Movies
Zoom ring (p.42)
Turn the zoom ring to take pictures with zoom
function.