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1080p or 720p to DV Pal on DVCAM
We film in either 1080p or 720p 25fps and do our edits in either of the 2.
I now want to put the footage to DVCAM DV Pal for broadcast.
If I nest the HD sequence in a DV Pal sequence with the field turned to “none”.
When I put it to tape, its not sharp at all. Text and edges have a kinda combing on them. Like jagged straight lines.
I’m unsure of whats causing this? Is it the way its scaling it down?
Or does it have to do with the field order of DV Pal in premiere being locked at “lower field” first. Though I cant see how that makes a difference with my footage being progressive. It should just turn out like PSF.
This is going to AIR tomorrow and I have tonight to get it sorted.
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3 Replies
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Forgot to add, i’m viewing this from the deck on a progressive monitor. Just checked it on a interlaced monitor and it appears nice and crisp.
So to understand whats happening here?
My progressive TV is deinterlacing the footage to display it and thus throwing away half the information, or thereabouts. Dependant on the quality of the individual tv’s deinterlacer I take it?
Am I right?
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Most likely. It’s probably oversharpening after it blends the two fields into a progressive frame. Or, it may be losing resolution by filling in the empty lines and sharpening.
To address your other issue: DV is weird in that it encodes PAL as lower field first. It’s part of the DV spec.
https://www.motionelements.com/blog/workflow/video-field-order-reference-list
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Im just used to FCP where you can set the DV PAL sequence field order to “none”, and I thought the export followed that too.
But now thinking about it, the DV Pal exports always had their fields ticked to LOWER when they were reimported to FCP.
So it appears anything exporting DV PAL always sets the field order to “lower”.
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