From: utzoo!decvax!harpo!npoiv!npois!cbosgd!mark Newsgroups: net.video Title: Re: Incredible 3-D ! Article-I.D.: cbosgd.3250 Posted: Sat Mar 12 21:59:35 1983 Received: Sun Mar 13 13:51:14 1983 References: <358@ihuxr.UUCP> Was this the technique where alternate frames are for alternate eyes? If so, it has lots of advantages, in addition to those you mention, handicapped people with only one eye can perceive the 3D effect! Apparently the brain compensates somehow for the time-division multiplexing involved. The one real disadvantage is that you only get effectively 15 HZ refresh instead of 30, so there is a greater possibility of flicker.