Sony DSC-H1 - 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 for use (t step 4 in “Read This First”)
The default settings are marked with .
* Images are recorded in the same 3:2 aspect ratio as photograph printing paper or postcards, etc.
Selecting the image quality (compression ratio) in combination (page 40)
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: 5M
2592 pixels×1944 pixels = 5,038,848 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 in up to A4
size
Few (Rough image
quality but small file
size)
Example: An attached image
to be sent by e-mail
Image size Usage guidelines
5M (2592×1944) Larger
Smaller
For printing high density images in A4 or A5 size
3:2 (2592×1728)*
3M (2048×1536)
1M (1280×960) For printing in postcard size
For recording a large number of images
For attaching images to e-mail or creating web pages
VGA(E-Mail)
(640×480)
480
640
2592
1944
Pixels