Thanks for the responds! The resolution of the beamer is SVGA 800 x 600, 480.000 Pixel SXGA 1280 x 1024 compressed. I could maybe get a better one if this would contribute to the result significantly. As for the Mosaic-effect….I don’t want it to have a superficial look. It’s just, that on the screen of the computer it looks fine but as projection it loses details. Would it help to preserve the details?