A bit of unsual scenario, I need to divide a video projection beam horizontally into two. Since the splitted beams in my diagram are treated as a separate beam they have to have their focus plane changed. Is that possible to do and how would one do it?
http://image.ibb.co/jAu9x7/9241421.jpg
If this helps the resolution of the original beam is pretty low by todays standards, 856x480 pixels.