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1080i vs 1080p
Hey guys,
We are preparing to do an industrial shoot with our new PMW-350. Not sure about shooting 1080i or 1080p. The output will be Flash for the Web and MPEG2 for DVD. Any recommendation would be appreciated.
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40 Replies
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For DVD, I have gotten the best results with 720p. 1080p would be next. I cannot seem to get an acceptable DVD from 1080i material.
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Teri,
Greg’s answer is correct; always use progressive frame rates for media purposed for the web or dvd as the repeated frames (in 24 or 30 fps rates) are much easier for the compression to take place. In practice the compressor has the time period of two (or with 24p on some frames three) frames to do its work vs having to do it 60 times a second with interlace. That’s why. As regards dvd’s they are always de-interlaced to progressive anyway, this way they are able to fit as much as twice the information in the same space.
JS
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What if we need to mix in some SD footing that is interlaced?
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Still go with establishing your timeline as a progressive timeline first, then just drop in the SD footage and let turn to progressive with the better progressive footage. It’s all you can do to make interlaced footage comply. I shoot in nothing but progressive anymore. The world is moving in that direction, or should I say it has for some time.
Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org -
If you are going to a web video, no reasons at all to shoot 1080, and many reasons for don’t doing that.
Shoot a glorious 720p50.
rafael -
But if you intend to also dvd publish, there’s every reason to shoot in 1080!
JS
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Yes, I often shoot 720 60p which makes fast motion more discernible over the web.
Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org -
Well…that certainly cleared that up…NOT!
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This is exactly what I don’t recommend; 60p stresses the compression more than anything. 30p is the ideal frame rate for the web as it allows the compressor the time of two frames (1/30th of a second) in which to do its business.
JS
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