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Field dominance when bumping DV sequence to Uncompressed
When bumping up a sequence from DV to Uncompressed, I think Graham Nattress suggested to set the Sequence field dominance to NONE. But when I tried that, there were kind of double vision results on any motion within the shot. I’m using Nattress G Nicer to smooth color but that wasn’t the problem. When I changed the sequence setting to Lower, it was fine. Did I misunderstand Graham or could it be something else? Thanks for any feedback.
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9 Replies
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Since both DV and uncompressed SD are lower field dominant, I would hazard a guess that you misunderstood Graeme. But, you never know Grasshopper, Graeme has received “the knowledge,” and only he knows the secret way of the scan line.
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I think the problem is less a field order issue and a slight upconvert issue.
Remember DV is 720×480 and most SD cards expect a slightly different aspect ratio that translates to 720×486.
FCP will do a little conversion that looks fine most of the time but will yeild problems with some high motion and Livetype/Motion projects. That happened to me this weekend. A timeline I was working in was DV but my livetype projects were coming in from a SD template. Wierd field artifacting that went away when everything was resaved as ‘dv’.
Maybe that’s the problem or a step in the right direction.
– Rick
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You need to shove everything down a scan line if you are putting 720×486 animations into a 720×480 timeline.
Jeremy
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Timeline field order none only effects the animations you do in FCP using the motion tab. Both DV and SD are lower, but if you embed the 720×480 in a 720×486 timeline, there can be field order issues depending on which pixels are left blank at top and bottom.
Graeme
– http://www.nattress.com – Film Effects and Standards Conversion for FCP
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As I said, only you know the secret way of the scan line.
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This is kinda scan line 101, but I don’t doubt the power G holds.
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So, how do you get around this trouble (make 720 x 480 WORK in a 720×486 project)?
Alexander Gao
“When the revolution happens, I’ll be leading it.”
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two black lines at the top, and 4 black lines at the bottom.
Graeme
– http://www.nattress.com – Film Effects and Standards Conversion for FCP
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Is there any way to practically achieve this? In your opinion, is bumping up the sequence a viable
option to improve a piece with lots of subtitling?
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