Here is a desctiption of the process, but I'm sure googling will show other sites. Basically, you have to have a projector or dvd player that will stretch the image vertically and reclaim the lost pixels taken up by the black bars, about 33%. This is different that zooming, which only moves the black bars off the screen, and does not reclaim those lost pixels and brightness.

Then, the lens stretches the image back out horizontally, to make it look normal again. Your screen has to be a 2.35 aspect ratio also.

http://www.prismasonic.com/english/intro.shtml


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