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Field dominance question
what are the differences when choosing sequence settings and setting field dominance to lower, upper, or none if I playback on a dvd? will it make a difference on my video what if I choose none?
-SERG
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7 Replies
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Choose the field dominance setting that matches your source footage. For NTSC (or PAL DV/DVCPRO), use lower field first. For PAL (non DV), use upper field first. For progressive footage (24P, 30p) use none.
Whether or not the project is played back on DVD has no relevance to the choice of field dominance in sequence settings.
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Actually i would just like to add that if your main output format is DVD, then you must de-interlace your work before authoring it. Interlaced footage is mainly for broadcast.
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[Mohamed Kamel] “if your main output format is DVD, then you must de-interlace your work before authoring it.”
Patently false statement Mohamed .. its certainly a choice available but its utterly wrong to suggest that it is either required or advisable.
Sorry for being blunt, perhaps I’ve missed your intended meaning.
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No problem, i’m aware that ofcourse it is a choice but i was just advising that it’s always a bad idea….atleast in my opinion.
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Hi Mohamed,
As Andy said, DVDs can be Interlaced or Progressive, however it can be interesting de-interlace because more and more people watch the DVD’s in computers where interlaced stuff may looks worst.
Rafael -
Well, yeah, but if you don’t deinterlace properly you risk losing half of your resolution (just as an example, FCP’s own deinterlace filter will do that). As for computers, any decent software DVD player should do its own deinterlacing on-the-fly (though of course, there are plenty of “indecent” software players out there…).
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The majority of people still watch SD DVDs on SD TVs so de-interlacing just introduces another loss of quality as you will go from interlaced source footage-> de-interlaced DVD -> interlaced SD TV. If you know your audience is going to primarily watch the DVD on a progressive display than doing a top quality de-interlace should be a consideration but doing it across the board is a waste of resources and an unnecessary degradation of image quality, IMO.
-Andrew
3.2GHz 8-core, FCP 6.0.4, 10.5.5
Blackmagic Multibridge Eclipse (6.8.1)
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