Samsung became the third camera designer to upgrade its lineup today with three new compact cameras. Two of these, the ST100 and ST600, double the size of the DualView range and take it to different directions. The ST100 is the first true ultra-compact to use the technology and can preview self-portraits or other shots while still keeping an entirely internalized, 35-175mm equvialent 5X zoom lens; the ST600 uses a conventional barrel with the same zoom but a 27-135mm wide-angle zoom.