Its a bit like the 80's front projection system with no model lamp or fancy screen that made it all work. the problem with it as i see it is somebody in China is already making a cheap version of it as it is only a slide holder on a lens mount, no optics, electronics, so the us makers will have to sell a lot quickly to make any money, similar thing happend to the Rayflash Ringflash ad on, i bought mine for £ 150.00 and 3 months later there's a copy on ebay for £ 30.00. David