The DiMAGE S304 has 4 different image size settings;
Full 2048x1536, UXGA 1600x1200, XGA 1280x960 and VGA 640x480.
Image size of each mode is almost equivalent to an image captured with a 3 mega-pixel, 2 mega-pixel, 1.3 mega-pixel or 0.35 mega-pixel DSC respectively.