Activity › Forums › Apple Final Cut Pro Legacy › 720p slight flicker in sd
-
720p slight flicker in sd
Posted by Dane Henry on June 4, 2008 at 5:29 pmGetting a slight flicker with my 720p video when letterboxed in an SD sequence. It is most noticeable on the top & lower boarders of the letterbox and horizontal movement. Only visible on my video monitor. Is this a field dominance issue? With my HD 1080i I would just reverse it to lower. I thought progressive played interlaced on interlaced equipment.
Should I be interlacing my progressive video to a Lower(even) Field field dominance?
Thanks
Dane H
Jeremy Garchow replied 17 years, 11 months ago 3 Members · 15 Replies -
15 Replies
-
Jeremy Garchow
June 4, 2008 at 5:58 pm[Dane Henry] “Should I be interlacing my progressive video to a Lower(even) Field field dominance? “
No.
I bet the letterbox is hitting at a particular line on your monitor causing it to appear to flicker.
That happens on exactly one CRT monitor here, but not on the other three.
-
Dane Henry
June 4, 2008 at 6:14 pmJeremy,
Thanks for the response,What about the flicker on hoizontal movement?
I’m dropping a finished 720p movie into an 8 bit SD timeline.I did a search on posts and got this:
FCP doesent do a good job of resizing. So, I take the 720p to compressor and output an 8 bit uncompressed letterboxed. Then bring it back into FCP to layoff to betaSP.
Any other recommendations?
Dane H
FCP 6.0.2
3ghz 8core MacPro
4gb Ram
Kona Lhe
Sony PVW 2800 -
Dane Henry
June 4, 2008 at 6:37 pm30fps, edited in a 29.97 timebase but with a Quicktime video setting of DvcPro HD 720p60.
Would I have this issue if the video was shot at 60p?
Should I/Can I make a new preset with kona card for 720p30?
Thanks,
Dane H
-
Jeremy Garchow
June 4, 2008 at 6:48 pm[Dane Henry] “Should I/Can I make a new preset with kona card for 720p30? “
You captured firewire with the 720p30 preset? Is that right?
[Dane Henry] “Would I have this issue if the video was shot at 60p? “
Nope, you’re fine. You’d have other issues, but we won’t get into that now.
As long as you drop into a 29.97 timeline with a field dominance of ‘none’ you should be good.
Compressor does work well, though, if you have the time.
I would recommend Compressor over letting FCP handle it.
Jeremy
-
Dane Henry
June 4, 2008 at 7:23 pmJeremy,
It’s P2 footage shot at 30p. It was a series of long interviews, 30p for a longer record run time.
I must have something else set wrong, because it just doesn’t look as smooth as my interlaced footage on the monitor.
I just finished using compressor on one of the edits. The noticeable flicker on the top and bottom of the letterbox are gone but there is still a slight flicker on motion.
I’ll try a 30p setting with the Kona.
Thanks for your help,
Dane H
-
Jeremy Garchow
June 4, 2008 at 7:58 pm[Dane Henry] “I must have something else set wrong, because it just doesn’t look as smooth as my interlaced footage on the monitor. “
You realize you are looking at progressive material and there’s an inherent judder, correct?
-
Dane Henry
June 4, 2008 at 8:09 pmIs there no way to fix that?
If not, it’s too bad for the TV viewers, but great for me, I would be super glad to be finished with this project!
Thanks,
-Dane H
-
Jeremy Garchow
June 4, 2008 at 8:14 pmDane it’s really hard if I can’t see what you are seeing. Is there ANY way you can post a second or two or the uncompressed SD material so I can look at it? i just want to be sure.
Jeremy
-
Dane Henry
June 4, 2008 at 10:48 pmHere’s a link:
https://www.deeprootsmedia.com/creativecow_sd_footage/Edit-CSIA_2_Test.mov
Thanks for your help,
-Dane H
Reply to this Discussion! Login or Sign Up