Epson PhotoPC 650 User Manual page 33

Compression is a technique used to make the image data fit
in a smaller memory area and transfer at a quicker rate. The
JPEG compression used by your camera eliminates some
image data ("lossy" compression) to achieve these results.
The Uncompressed image quality setting doesn't
eliminate image data ("lossless" compression), but the images
are much larger and slower to transfer.
You can select from these image quality settings:
Fine
Produces color images at 1152
moderate compression. Your pictures include ample
detail, and the CompactFlash card holds approximately
47 pictures.
Superfine
Produces color images at 1152
low compression. Your pictures include greater
detail, and the CompactFlash card holds approximately
30 pictures. With less compression, superfine images are
better for enlarging.
Standard
88 pictures, but the image size is smaller and includes less
detail when enlarged. You should use this setting when
taking lower resolution pictures for distribution on the
World Wide Web.
Uncompressed
864 pixels, with
use this mode only for specialty applications that require
uncompressed pictures.
Fine image quality is sufficient for most purposes. Use
superfine if you need maximum detail (in enlargements, for
864 pixels with
example), but remember that the image files are larger than
fine quality image files and take longer for the camera to
process.
NOTE
You can switch freely between the settings and mix pictures of
varying quality in the camera. The camera's picture capacity will
vary accordingly. Depending on the content of your pictures, your
camera may hold more or fewer pictures than listed here.
Produces color images at 640
CompactFlash card holds approximately
Produces color images at 1152
lossless compression. The CompactFlash card holds
approximately 4 pictures in this mode. It's best to
480 pixels. The
864 pixels with
A
B
Taking Pictures 2-9