GE H855 User Manual
The histogram is used for checking the expo-
sure while taking pictures. Use this setting to
enable or disable the histogram display on the
Slow Shutter mode will keep the shutter open
as long as you push down the shutter button.
So, you are in complete control of the exposure.
(The Slow Shutter setting is only available when
the camera is in the
Manual: To set a long exposure time
between 2~30 sec.