FujiFilm XF10 Owner's Manual page 71

Long Time-Exposures
A count-down timer is displayed during long
time-exposures.
N
Use of a tripod is recommended to prevent blur caused by the camera
moving during the exposure.
To reduce "noise" (mottling) in long time-exposures, select ON for
K LONG EXPOSURE NR. Note that this may increase the time need-
ed to record images after shooting.
You may it helpful to use a remote release for long time-exposures
P
( 171).
Choosing a Shooting Mode
30
30"
5
55