Shutter-Priority Ae Mode - Panasonic Lumix S5 Manual

7. Metering/Exposure/ISO Sensitivity

Shutter-Priority AE Mode

In [S] mode (Shutter-Priority AE mode), you can set the shutter speed
before recording.
The aperture value will be automatically set by the camera.
Slower shutter speeds
It becomes easier to capture motion
1
Set the mode dial to [S].
190
Faster shutter speeds
It becomes easier to freeze motion