BenQ MP730 - Manual (Page 36)

Operation 36
3. Auto: Scales an image proportionally to fit the
projector's native resolution in its horizontal or
vertical width. This is suitable for the incoming
image which is in 4:3, 16:9, or 16:10 and you
want to make most use of the screen without
altering the image's aspect ratio.
4. Real: The image is projected as its original
resolution, and resized to fit within the display
area. For input signals with lower resolutions,
the projected image will display smaller than if
resized to full screen. You could adjust the zoom
setting or move the projector towards the screen
to increase the image size if necessary. You may
also need to refocus the projector after making
these adjustments.
16:10 picture
4:3 picture
16:9 picture
4:3 picture
OSD menus can be
displayed on those unused
black areas.