It has probably been two years since I checked a new top of the line JVC in 3D mode on a 120" Firehawk. It was WAY too dim to be practical, 3-4 fL with a new bulb. And they only get dimmer as the bulb ages. Count on 3D being about one forth the brightness of 2D. I concluded that in that setup, it would be better to watch Avatar in 2D, which was plenty bright enough, rather than put up with the overly dim image in 3D.
1/18/14 at 5:51pm