Canon IXUS Z79 Manual page 7

Features
S] New Type Prints
The Advanced Photo System allows the camera to shoot
three types of prints: in addition to classic print types {C
print), you can now shoot wide-angle (H print) and panorama
(P print) prints.
The Advanced Photo System can also imprint date/time
information on the back of the print, or on the front and back
of the print. The system can also imprint title text on the back
of the print.
^Character size, shape, color, position, and ability to print on
both sides may vary according to the individual photo shop.
S] New Processing Methods
Previous 135 {35mm) film has always been returned from
the processing lab as negative strips. This has made
ordering reprints inconvenient since each picture must be
found on the negative strips. With the Advanced Photo
System however, the negative film is returned from the
certified shop reloaded in its cartridge, accompanied by an
index print. Unlike hard-to-see negative strips of previous
cameras, this index print (where all shots can be viewed)
makes reviewing prints much easier. Users can now order
reprints simply by matching the ID on the back of the print or
on the index print with the ID on the film cartridge, and then
specifying the print number to be reprinted at the photo