Klaas Robers wrote:Steve, a problem for 525 / 60 is that you cannot display 512 lines / frame, or 256 lines per field.
For 625/312 lines 25/50 Hz you loose 25 lines per field, so you still have 287 lines per field (non interlaced) free, so you can show 256 lines.
Klaas Robers wrote:I can just see the contouring on her left side of the forehead.
Klaas Robers wrote: But I am asking myself: where is the vertical line structure over the whole picture originating from? Is that the clock frequency of the A-D converter? However I see that it is not synchronous with the right edge of the displayed picture, see right top. Or do I see the TV-lines, was this photographed with the TV rotated over 90 degrees, was it lying on its side? Or is it just interference on the (RF) TV input signal?
But over all it is an almost perfect picture.
Klaas Robers wrote:The contouring looks to be the transition between 7F and 80.
Klaas Robers wrote:...no colour at all, so I did not expect that I was looking at a colour TV picture tube.
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