The Panasonic has a really nice lens memory feature so if you have a 2.35 aspect ratio screen, it will instantly zoom and lens shift at the touch of a button, so it is really to switch between 2.35, 16:9 an 4:3. This is the one feature I really wish my projector had, it's kind of a pain having to manually adjust zoom and lens shift, when switching between most Blu-Ray movies and HDTV shows.
Jim C