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Another 24p advanced question

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Josh Elson
Another 24p advanced question
on Jul 6, 2009 at 11:05:27 pm

Hi there. If anyone who can help me with this issue I would greatly appreciate it. I know it's been asked before but the answers I've found haven't helped.

Ok so I am using a Panasonic DVX100a and shot a bunch of footage. I shot it in 24p advanced. I'm using Adobe Premiere CS4 and captured the footage via firewire into a DV 24p sequence. I'm able to edit it fine but am having sever problems with the picture quality. here's what's going on:

1. My first issue is that everywhere I've looked online, everyone says you need to interpret footage and remove 24p pulldown BEFORE you drag clips to the timeline, otherwise it's too late. BUT, I started editing my footage and only after a few hours found out I needed to interpret the footage and remove pulldown. So I did this to the captured footage, and it effected the clips in my timeline, contradictory to what everyone has said about how you must do it before putting clips onto the timeline. Not a big deal, but I'm just wondering why it did this (maybe I have an update other people don't have?)

2. i did a render test to see exactly what removing the 24p pulldown was doing and when I played the rendered clip back on Windows Media Player and VLC, with the 24p pulldown removed I have horrible interlacing, but with it NOT removed I have no interlacing but do have jittery footage. I understand that 24p will be jittery but this looks REALLY jittery. Again, this seems backwards to what I've read about how you need to remove pulldown in order to remove interlacing.

3. With 24p pulldown not removed, I render the file as an MPEG with everything turned up - bitrate and quality. I set the frame rate to 24. When I play it back on VLC it looks decent but not very good. I ultimately want to upload this footage to Youtube so I want it to look nice but I understand it might not look phenominal. Is there a recommended render setting I should use?

I maybe screwed myself by shooting in 24p advanced but instead of blowing it off and just shoting 30i next time I really want to learn the specifics of 24p advanced so I can use it properly in future projects. If anyone knows the answer to these problems, I would be grateful to hear them. Thanks.


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Noah Kadner
Re: Another 24p advanced question
on Jul 7, 2009 at 11:30:07 pm

You cannot edit or export at 24 frames per second until you remove pulldown because it is a 29.97/60i signal otherwise. Remove the pulldown, that's the whole idea of this camera.

Noah

Writing RED: The Ultimate Guide to Using the Revolutionary Camera!. Unlock the secrets of the DVX100, HVX200 and Apple Color.
Now featuring the Lens Adapter Guidebook, Sony EX1 Guidebook,
DVD Studio Pro and How to Light Interviews.
http://www.callboxlive.com


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Josh Elson
Re: Another 24p advanced question
on Jul 8, 2009 at 4:49:14 pm

I realize that removing pulldown is the point of getting back the original 24fps, but what I don't understand is why when I remove pulldown, I get horrible interlacing, and when I don't remove pulldown, I don't have any interlacing issues. this seems backwards to what I should be experiencing...


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