Quote:
Originally Posted by Panrock
By doing that, wouldn't you potentially lose some of the horizontal definition? The full definition previously provided by a given size of spot (which would remain constant) might be blurred by crunching in the picture horizontally.
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Possibly some of the H resolution could be lost, depending on what was present in the source material. At the point that the spaces between the lines just vanish, then there would be about 377 active picture elements vertically, then about 377 x 4/3 elements possible horizontally. The H resolution supported by the crt under this condition is still more than for the V.
I think in the past I calculated the effective upper video frequency supported by this scenario and it was roughly about 2.5MHz for a 405 line system. The 405 line source material might only be any good for that anyway. So it is all compromises and it would be an imperfect way to transfer/convert the video, but it is a way.