Optoma X-515 DLP 3D Professional Projector

Hor/Ver. lens shift gives you the ability to move the projected image up or down and left or right, while keeping the projector stationary. This makes it easier to position the projector in your room and enables a wider range of screen size options. Four-Corner Adjustment Individually warp each corner of the image to create a perfectly square image. This funciton is ideal for image stacking, uneven walls or where projector placement is awkward and needs to be installed at an angle. Image Stacking Double your image brightness without significantly increasing your installation cost; with warp adjustment, you can achieve any brightness you want. Image stacking permits flexible installations and greater redundancy; an image can be displayed without interruption while swapping lamps.