Sony DSC-P200 - 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
Selecting the image size (t step 4 in “Read This First”)
Selecting the image quality (compression ratio) in combination (page 32)
You can select the compression ratio when digital images are saved. When you select a high
compression ratio, the image lacks the fineness of detail, but has a smaller file size.
Quality On “image quality” and “image size”
1 Image size: 7M
3,072 pixels×2,304 pixels = 7,077,888 pixels
2 Image size: VGA(E-Mail)
640 pixels×480 pixels = 307,200 pixels
Pixel
Many (Fine image
quality and large file
size)
Example: Printing at a larger
size
Few (Rough image
quality but small file
size)
Example: An attached image to
be sent by e-mail
Image size Usage guidelines
7M (3072×2304) (the default setting) For printing at a larger size with high density
3:2 (3072×2048) For printing at photo size with high density
5M (2592×1944) For printing at a larger size with high density
3M (2048×1536) For printing at A4 size
1M (1280×960) For printing at postcard size
VGA(E-Mail) (640×480) For sending an image by e-mail or creating home pages
Pixels