Kodak DC40 - Manual (Page 15)

11 January 1996
Setting the Flash
The effective range for the flash is between four and nine feet.
In order for the flash to have an impact on the picture, make
sure you are between four and nine feet away from the subject.
The Flash icon allows you to change flash settings.
Flash Setting Descriptions
The three flash settings are described below.
Automatic Flash
With this setting, the camera determines whether or not the flash should
be used based on the existing light. This is the default setting.
To use automatic flash, do not make any changes to the flash feature.