Samsung Digital Camera User Manual (en)

Extended functions
Using the Smart Auto mode
Half-press [Shutter] to focus.
Press [Shutter] to take the photo. 
If the camera does not recognize a proper scene mode, 
and the default settings are used.
Even if there is a face detected, the camera may not select a portrait 
mode depending on the subject’s position or lighting.
The camera may not select the correct scene depending on shooting 
environments, such as camera shake, lighting, and distance to the 
Even if you use a tripod, the 
 mode may not be detected depending 
on the subject’s movement.