Sony DSC-T500 Manuel d'utilisateur télécharger pdf (Page 12)

Basic techniques for better images

A digital image is made up of a collection of small dots called pixels.

If it contains a large number of pixels, the image 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

Selecting the image size for use (pages 13, 27, 30)

Quality

On “image quality” and “image size”

1 Image size: 10M

3648 pixels × 2736 pixels = 9,980,928 pixels

2 Image size: VGA

640 pixels × 480 pixels = 307,200 pixels

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)

Example: An attached

image to be sent by

e-mail

Pixels

Pixel

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 134 135

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Sony DSC-T500 Manuel d'utilisateur Page 12