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One last mess to understand today…DV Capture
Before I knew a thing about editing I was shooting…and when I was initially shooting I was so unsure about Pregressive and Interlaced that I was sort of flipping back and forth.
Then I learned how important it can be to capture an entire tape so that I can do EDL’s, and the like.
Well I have a BIG problem that I would like a solution if there is one. On a given tape there might be DV 720 x 480 (never did any wide format 1.2px stuff) that is both progressive and interlaced.
Is there a setting that can cover both so I don’t get an aliased mess…?
Thank you in advanced!!!
Gravnetic Production
You’ve had our patatoes!http://www.Gravnetic.com
1 208 867 8172
Mo*******@*****il.com -
4 Replies
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Well…all DV is interlaced on the tape. In NTSC land, you can shoot with a “23.976p” setting on a DVX100, but it still has to lay it down on the tape as interlaced 29.97i with a ‘pulldown’…it’s the only format in the spec…as is 25i in PAL.
In HD, there are different stories…lots of different stories.
TimK,
Director, Consultant
Kolb Productions,CPO, Digieffects
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I was shooting with a Canon GL2 at the time and have about 40 tapes to capture for archival, which I will very likily use in the future.
In the GL2 I can shoot in progressive mode?
I have often seen captures that looked really aliased when playing it back in either PPRo, Quicktime, and WMP…I always thought this was due to the whole progressive thing.
Not sure where to turn now, as I agree with what you have said, but I still end up with really aliased edges in some footage and I have a stong feeling this is due to whether the footage was shot as 29.97 or 30p on my Canon GL2.
Gravnetic Production
You’ve had our patatoes!http://www.Gravnetic.com
1 208 867 8172
Moocycles@hotmail.com -
The “combing” is usually visible on interlaced footage shown on a progressive display…like a computer display.
30p footage shouldn’t show combing on a progressive display as both fields should have been imaged at the same instant.
Your 30p setting shouldn’t end up being visible as interlaced, even though technically, the video clip is interlaced.
TimK,
Director, Consultant
Kolb Productions,CPO, Digieffects
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Is this aliasing visible as soon as you place your 30p clip on timeline, or rather when you apply certain effects? I have come to learn that many of Premiere’s built-in effects will cause automatic deinterlacing — even in a 30p timeline.
This is because Premiere is assuming the progressive DV clips to be interlaced — and because these filters are built on the After Effects model which separates the fields before applying the filter.
Here is a list of effects that cause this problem:
https://invertedhorn.axspace.com/premiere_cs3_filter_problems.html
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