Weird Horizontal Lines in Export

rreichenfeld

rreichenfeld

Active member
I shoot with my DVX100a in 24p (not 24p advanced). Bring it in to Final Cut Pro 5, and export it as a quick time movie or an ipod video. The result is good other than the fact that I can see these weird horizontal lines, most visable on the border/perimeter of my subject and the background. What is this?? They are very thin and sometimes cant be detected but I can see them and they dont look normal. Are they always there?

Thanks in Advance
 
Those are interlacing lines, I've seen a few people with the problem of progressive video having interlacing lines... I don't get it.
 
I know what interlacing looks like, and this isn't it. I guess unless it is a speacial form of interlacing with progressive scan material. It seems to be only around the borders of objects and not really throughout the picture. Movement really brings the lines out. Do you still think it's interlacing?
 
I used to have that exact problem with interlacing, I was shooting 60i at the time, and I think i tried to deinterlace the footage and thats what happened.

Definetally an interlacing problem though.
 
I have the exact same issue with footage I shot as 24p normal. I've tried several different things such as reverse telecine to try to solve it. I don't seem to get those lines when I make a dvd but everywhere else: fcp, cinema tools, quicktime the lines are there. Here's an example:
http://www.vimeo.com/1364630
 
I assumed that reverse telecine was the pulldown removal. If that isn't right I don't know how to remove pulldown unless fcp does it automatically with the 24p advanced preset, but this footage is of course 24p normal. If I select Tools > Remove Advanced Pulldown in FCP it doesn't work. I'm thoroughly confused.
 
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why are yall shooting 24p normal for anyway? why dont you shoot advanced? theres no reason to shoot normal 24p.

i assume cliking remove advanced pulldown in tools doesnt work becuz you didnt use advanced pulldown. you used normal pulldown. "like your stuck in the frikin 60's man."
 
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With Final Cut
easy setup DV / NTSC
then reverse telecine (with cinema tools for the 2:3 pull down) your footage you are making it 24p for a 23.98 timeline and should be progressive without the interlacing lines

24p captured is actually 60i footage and will have interlacing lines on the footage and why you need to remove pull down (2:3)
this is why you can edit 24p, 30p and 60i all on the same timeline

reverse telecine in cinema tools and create a 23.98 timeline in final cut for your footage

read this for a very good explanation of 24p http://www.adamwilt.com/24p/ and http://www.kenstone.net/fcp_homepage/24p_in_FCP_nattress.html
 
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rreichenfeld said:
I know what interlacing looks like, and this isn't it. I guess unless it is a speacial form of interlacing with progressive scan material. It seems to be only around the borders of objects and not really throughout the picture. Movement really brings the lines out. Do you still think it's interlacing?
Click to expand...

That is exactly what interlacing will look like. Having shot 24p standard and using FCP, it's what's you're going to see.

No version of Final Cut Pro -- and definitely not 5 -- will automatically remove standard pulldown. You have to use Cinema Tools for that.

Never, ever deinterlace progressive footage. The right thing to do is remove the pulldown.
 
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