However, if you wish to ceiling mount, you can shift the lens such that, once the projector is inverted, the top edge of the image is below the centerline by about 16% of the picture height.

• 但是，如果你想安装天花板，你可以把镜头等，一旦投影机是倒挂，最上面的图片是低于中心线约16%25的图片的高度。