Canon EOS Rebel XS Instruction Manual page 66

Setting the Image-recording Quality
About
is the raw data before it is made into a _ L or other images.
Although _ images require software like Digital Photo Professional
(provided) so they can be displayed on the computer, they also offer
flexibility for image adjustments possible only with _. [_ is effective
when you want to precisely create your own art or shoot an important
subject.
For example, with a _ image, you can use the provided software to
create various versions of the same image having a different Picture
Style. Also, if you took the picture with the wrong white balance (p.90),
you can change the white balance without degrading the image duality
Note that _ images will not work with direct printing or print ordering
(DPOF).
About _+dL
_]_+ _ L records both a _ and 8 L image with a single shot. The
two images are saved to the card Since the _1L image is recorded as a
processed image, you can view it as is on a personal computer without
the bundled software or print it as is. With I_ + _ L, the two images are
saved with the same file number in the same folder. You can distinguish
between them with the image type or extension. The [_ image's
extension is "CR2," and the _1[L image's extension is "JPG"
File number
File extension
@
The Auto [.!gbtipg opt!m!zer (p,156) v4!! n#t w#rk w!tb _ and _ +j L
images.
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