[QuadList] NTSC vs PAL Chroma bandwidth--Quad & 1" (was 1" Type C to DVCAM)

[C. Park Seward]

Ted,

Yes, you have to digitize the 1" picture, bring it back to analog and then re-digitize it for recording to DVCAM. Hope your filters are good and both use the same sampling frequency of 4X subcarrier. Early Ampex TBCs used 3X subcarrier. But I don't think you'd see much difference since the chroma channels are so soft to start with.

I don't think you'd see much difference. I'd suggest a 10 bit TBC for the 1". Although the Zeus is 4Fsc, 9 bit, still better than 8 bit.

Best,
Park

C. Park Seward
2" Quad and 1" "C" transfers
Visit us: http://www.videopark.com




On Jun 17, 2010, at 9:45 AM, Ted Langdell wrote:

> What effect would going from Direct Color 1" PAL through a digital TBC to 4:2:0 DVCAM do to the picture quality.
> 
> And to bring this back to Quad... since most Quad is direct color, but usually played back through analog time base correction systems, what differences would exist for the same signal recorded to Quad and 1" PAL when played back. (Highband Quad v 1")
> 
> Ted.
> 
> Ted Langdell
> Secretary