RE:Will have to sell a lot of telescopes My god not the metasurfaces again. That's what the universities have been working on. I was wondering about the simplicity of this though. I think the lens part probably has been tried before but the aberration has to be corected with software if I understand correctly. So this will be a marriage of flat lenses and the software to run it. That's fine as all digital cameras have digital screens anyway. Even NASA has to correct their images before they are released.