[QuadList] Gene Kelley Show color recording system

[C. Park Seward]

Dennis,

Yes, the 1200 does have an RF dub out. And remember that U-Matic and   
BetaCam SP also had a dub out for the same reason.

Best,
Park

C. Park Seward
Visit us: http://www.videopark.com



On Jan 2, 2009, at 6:11 AM, Dennis Degan wrote:

>
> 		On Jan 1, 2009, at 5:13 PM, C. Park Seward wrote:
>
> > Question: Why would the chroma not have the same error as the  
> luminance?
>
> 		I offer:
>
> 	In an original direct recording, chroma WOULD have the same errors  
> as luminance.  Once copied from one machine to another, color  
> processing would produce new separate chroma errors from the  
> luminance's, resulting in different mechanical errors between the  
> two.  This makes the color information 'non-coherent' with the  
> luminance.
> 	I faintly recall that Ampex machines had a separate RF or demod  
> output that allowed dubbing the signal (prior to any processing)  
> directly from one machine to another.  While this would introduce  
> additional mechanical errors, the errors would be in both chroma and  
> luma equally, since they had not been separated and processed  
> separately.  Sort of an analog 'clone', if you will.  I don't know  
> if there were any dubs made in this way, but the connection was  
> there on the back of the VR-2000, I believe.
>
> 		Park also asked:
>
> > How does velocity error show up in monochrome?
>
> 		I say:
>
> 	Aside from what has already been mentioned, it must be said that  
> velocity error exists even in monochrome.  But since monochrome  
> reproduction is not as critical as color reproduction, velocity  
> error is not normally visible.  Velocity error is microscopic  
> compared to other mechanical errors.
>
> 			Dennis Degan, Editor-Consultant-Knowledge Bank
> 	  				NBC Today Show, New York
>
>
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