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.
4:3 picture
16:9 picture
16:10 picture
4:3 picture
