Flash will give you more light to get bright pictures even the environment is dim.
Activate the camera by pressing the camera key:
To zoom in or out in the picture, use the volume/zoom keys on your device when you use the main camera. In the secondary camera mode, the zoom keys are up and down keys. Note that zoom enlarges the part of the picture which you are zooming in on. Using zoom can lower the image quality.
A scene helps you to find the right colour and lighting settings for the current environment. It is set on Automatic by default, but you can change it by selecting in the active toolbar Scene modes and the desired scene.
Different scene modes are:
Choose the mode in the Scene mode selection in the active toolbar and you will get a brief description of the mode.