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field dominance
HI, thanks for your time.
the problem is field dominance issues.
FCP6 HDV pal Sony native media. Editing in a HDV sequence.
Some dv sourced material (field shifted) and AVI (also field shifted).I don’t have access to interlaced monitoring (asking for trouble) but I am still totally surprised that the playout to HDCAM threw up field dominance issues (jitters on camera moves) on a great deal of the shots (even HDV native).
I have read the threads on switching the dominance on the source material to none and making a Pro-Res movie, but the broadcaster requires interlaced video.
Any suggestions welcome.
Wayne
Love Communications -
7 Replies
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a bit of extra info,
switching the sequence settings to Pro Res (HQ)and exporting using current settings does seem to resolve the issues without the need to switch dominance on the original files to none.
It doesn’t give me an interlaced output but it looks good.Wayne
Love Communications -
I don’t have access to interlaced monitoring … but the broadcaster requires interlaced video.
Any suggestions welcome.
Get access to an interlaced monitor. Seriously Wayne, in one sentence you state you don’t have an interlaced monitoring solution, in another you state your broadcaster requires interlaced delivery … what planet do you live on? It may sound harsh but its meant as a reality check, not as a telling off.
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Yes you need an interlaced sequence to playout to HDCam.(1080 50i) PAL is actually really easy for field dominanace. Everything is upper except DV. So check that the shift field filter is on only DV codec material. .mov or .avi are just wrappers. Check the codec.
You must check on an external monitor via a proper interface card like, Kona, Blackmagic or Matrox.
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I concede a card and monitor and new computer to put the card in would allow me to see my problem before the playout stage. This job being a very low budget independent documentary I have taken short cuts. I have checked the field of every shot individually to try and compensate.
The problem remains however that it was shot HDV, digitised HDV and edited HDV (the field shift filters were applied to the DV file material automatically as FCP6 does) and exported as a HDV quicktime movie for playout. Yet some of the material (not just DV and AVI) seem to have dominance issues. Is there possibly another reason for this? Perhaps a dodgy render file?
I would hate for this to remain a mystery.
Wayne
Love Communications -
If all lower field shots have shift field and none of the upper footage has and you are still seeing field issues, Can you let us know if there are any shots with speed changes and if so are any of them DV.
Also if on speed change shots, are you using frame blending. Also we need to know when and how you are seeing the problem shots. Are you using any particular plugins? any info that might help?
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The only filter applied (apart from the field shift) is the broadcast safe- (very conservative) and the occasional gamma correction. The dv has been re-sized for 16×9. No dissolves. The error appears to be on most (not all) of the dv footage and some dozen shots of the hdv material, and mostly in the second part of the programme (but part of the same sequence). The hdv material appears to be correct in the browser.
It was (hopefully) corrected by a hardworking online editor who stopped at each error and changed the dominance before continuing with the playout, I was not present. my dvd of the original sequence certainly doesn’t look good.
thanks again for giving this some thought. I would be happy to think I’ve done something really stupidWayne
Love Communications -
sorry, forgot to mention only one speed effect and it’s fine.
Wayne
Love Communications
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