FujiFilm Finepix F900EXR Owner's Manual page 34

Taking Pictures in R (E AUTO) Mode
3
Focus.
Press the shutter button halfway to focus.
R The lens may make a noise when the camera focuses;
this is normal. If the subject is poorly lit, the AF-assist
illuminator may light; see "C AF ILLUMINATOR" (P 105)
for information on disabling the illuminator.
If the camera is able to focus, it will beep twice and the indicator lamp will
glow green.
If the camera is unable to focus, the focus frame will turn red, s will be dis-
played, and the indicator lamp will blink green. Change the composition
or use focus lock (P 35).
20 Basic Photography and Playback
Double
beep