Sony DSC-T20/P Cyber-shot® Handbook - Page 10

Basic techniques for better images Quality On "image quality" and "image size" A digital image is made up of a collection of small dots called pixels. If it contains a large number of pixels, the picture becomes large, it takes up more memory, and the image is displayed in fine detail. "Image size" is shown by the number of pixels. Although you cannot see the differences on the screen of the camera, the fine detail and data processing time differ when the image is printed or displayed on a computer screen. Description of the pixels and the image size 1 Image size: 8M 3264 pixels × 2448 pixels = 7,990,272 pixels Pixels 2 Image size: VGA 640 pixels × 480 pixels = 307,200 pixels Selecting the image size for use Pixel Many pixels (Fine image quality and large file size) Example: Printing in up to A3 size Few pixels (Rough image quality but small file size) The default settings are marked with . Example: An attached image to be sent by email Image size 8M (3264×2448) 3:21) (3264×2176) 5M (2592×1944) 3M (2048×1536) VGA (640×480) 16:92) (1920×1080) Guidelines For prints up to A3(11×17") Shoot in 3:2 aspect ratio For prints up to A4(8.5×11") For prints up to 10×15 cm (4×6") or 13×18 cm(5×7") Shoot at a small image size for e-mail attachment Shoot in HDTV aspect ratio No. of images Less More Printing Fine Rough 1) Images are recorded in 3:2 aspect ratio, same as photograph printing paper or postcards, etc. 2) Both edges of the image may be cut off when printing (page 104). 10