LG GT540 Quick Reference Manual page 219

Camera
Getting to know the viewfinder
Brightness – This defines and controls of the amount of sunlight
entering the image. Slide the brightness indicator along the bar,
towards "-" for a lower brightness image, or towards "+" for a
higher brightness image.
Zoom – Zoom in or zoom out. Alternatively you can use the side
volume keys.
Settings – Touch this icon to
open the settings menu.
Image size – Touch to set the size (in pixels) of the picture
you take. Select a pixel value from the numerical options: 3M
(2048x153), 2M (100x1200), 1M (1280x90), VGA (40x480),
QVGA (320x240).
Focus – Touch this icon to select the options menu. See Using
the focus mode.
NOTE: You need to insert a memory card first to take a picture. Without
inserting a memory card, you will not be able to save the picture you had
taken.
Gallery – This enables you
to access your saved photos
from within the camera mode.
Simply touch, and your gallery
will appear on the screen.
Taking a photo
Video mode – Slide down this
icon to switch to video mode.