Contrast ratio of MultiMedia Projectors 2003-11-15 15:42:55 Most multimedia projectors has a contrast ratio of 2000 to 1..I am wondering if this is excessive since the psychovisual limitation of the human eye is just 100 to 1.. This means that if black is represented by a value of 1 then the minimum value which the human can detect as white is 100.. Normally, we would double this value and use 8 bits (256 level) to represent the dynamic range of the human eye sensitivity. But what I don't understand that there are some commercial products that would even use 12 bits video data(YUV)?? Wouldn't this be an overkill?How about a contrast ratio of 2000 : 1?? Too much?? In any case, the video data that feeds into the projector is very likely to be 8 bits data type (YUV)..