Sony DSC-W5 - Manual (Page 13)

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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
Quality On “image quality” and “image size”
1 Image size: 7M (DSC-W7/W17 only)
3,072 pixels×2,304 pixels = 7,077,888 pixels
2 Image size: 5M
2592 pixels×1944 pixels = 5,038,848 pixels
3 Image size: VGA(E-Mail)
640 pixels×480 pixels = 307,200 pixels
640
2592
1944
480
640
3072
2304
Pixels