4K by all means necessery

[argi]

http://www.avmagazine.it/articoli/avprofessional/343/sony-4k-e-3d-all-arcadia-di-melzo_index.html

http://www.aboutprojectors.com/news/2009/10/26/sony-announces-srx-r320-projector/

http://www.videocation.com/Sony_SXRD_4k-Projektoren_ofr.html

http://audiovision.de/News/2012/05/Freie/Men-in-Black-3-erstrahlte-bei-Deutschlandpremiere-in-4K