Thread: Widescreen hack
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Old 13 March 2015, 14:27   #8
mark_k
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Join Date: Aug 2004
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You misunderstood that page I think. Those aspect ratios are for the D1/DV NTSC and PAL specifications, which use a pixel sampling frequency of 13.5MHz. The Amiga's pixel clock is different.

NTSC Amigas have a pixel clock of 315/44 MHz (for low res), leading to a pixel aspect ratio (low res, or high-res laced) of 6:7, approx 0.857.

PAL Amigas have a pixel clock of 7.093790 MHz, leading to a pixel aspect ratio of 737500:709379, approx 1.040.
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