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Re: Digi Beta versus D1

Michel Lapointe wrote:
>My question to everybody: Is there a way of knowing , by examining the
>final  D1 tape, that digi Beta was used in the process, for maybe 2-3
>generations. The answers I got so far are inconclusive. I am being told
>possible picture content induced artifacts but without [ ... ]

As Charles Poynton has documented, there is a huge color information loss
when converting from 8bit R'G'B' to 8bit Y'CbCr, only 16% of the colors are

The digiBeta, being a 10 bit device, is able of representing the entire 8
bits R'G'B color space, without any loss at all.

The compression loss in the DigiBeta is negligible compared to the color
information loss in 8bit devices.

Thomas Lund

Thanks to Manhattan Transfer/Edit for support in 1998.
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