On Sat, 27 Jan 2001 16:30:28 +0800, "David Winter" wrote:

>John, 4:2:0 is the same as 4:1:1 except that the colour data is from a 2 x 2
>matrix on adjoining lines in a field. 4:1:1 takes the colour data from a 4 x
>1 matrix, ie along a single line.
>
>The colour data density is the same, and green screen will resolve finer
>edge detail than blue, if the theory I have read and the few testimonies
>posted that I've seen are to be believed. Why don't you do test samples
>blue-screen and green screen, and once you have had a close look, let us
>know.

Good advice! ;-)
Harking back to the religious discussion above, it does
often surprise me how often a question is asked that
could better be answered with a simple and quick trial
or experiment by the questioner...! ;-)
Are we again back in the days when the words of
authorities (or even theories/beliefs), no matter how
right or wrong, are more acceptable than our direct
observation of the truth from experience...? ;-)
(Sorry, just couldn't resist...! ;-)