My 1080i 24p footage looks interlaced, help! Thought I had camera set on 24pa. after done shooting saw it was in 1080i 24p I use raylight and every time I render out to anything it looks interlaced. Any suggestions. This will be on HD DVD or Bluray for final Output, also the web. I have searched but no luck finding a fix. I have Barry's bible loaned out to the Director.
my 1080i 24p footage looks interlaced help!
- Thread starter Wadro
- Start date
mvb
DVXuser Sponsor
DVFilm Maker 2.4 (included with Raylight latest version in the installData folder) can remove 3:2 pulldown from a 1080i60 Raylight AVI. Contact DVFilm Support for more info.
Another solution which is easier to use but another $195 is Raylight MXFX. ( http://dvfilm.com/MXFX ) which will operate directly on the MXF file. One advantage of MXFX is you can reduce noise while removing the 3:2 pulldown to mitigate the efffects of recompression, and retain the metadata.
DOSMedia
Well-known member
Its cuz its not a real 24p when you are shooting at 1080. Thats why it says 1080i24p and not just 1080p24.
Try using the 720pn24. It will look way better and you wont have that problem.
Oh if you want to know why it looks interlaced is cuz its taking 60i and using a 2:3 pulldown to get it to 24p.
Pretty sure on that.
I had that problem the last camera I had that only shot in 1080, so i just started shooting in 30 until i got my hvx and could shoot in 720.
HOpe that helps a little.
People on this site are A LOTTT smarter then me bout the HVX, so I might be wrong why it looks that way but im like 99% sure thats why.
Later
Bentley
Try using the 720pn24. It will look way better and you wont have that problem.
Oh if you want to know why it looks interlaced is cuz its taking 60i and using a 2:3 pulldown to get it to 24p.
Pretty sure on that.
I had that problem the last camera I had that only shot in 1080, so i just started shooting in 30 until i got my hvx and could shoot in 720.
HOpe that helps a little.
People on this site are A LOTTT smarter then me bout the HVX, so I might be wrong why it looks that way but im like 99% sure thats why.
Later
Bentley
William_Robinette
Shallow Member
Nope, it's real 24p, just carried in a 60i stream. The HXV isn't getting 24p from 60i, it just has to transport 24p in a 60i stream because of the codec.
DOSMedia
Well-known member
Thats what I said. Used threw a 2:3 pulldown. Making it not a real 24p and giving it that interlaced stuff.
In 720 its actually shooting 24, not 60i24p, thats what i mean by real.
you do realize it is REAL 24p once the pulldown is removed.... right?
William_Robinette
Shallow Member
Exactly.
If you aren't getting true 24p out of your 1080i24 material then you are doing something wrong in post or upon import.
Phil Maker
Well-known member
What?!?!?!? No, you are wrong, 720 24pn will NOT look way better. It won't even look slightly better. It won't look any better at all in any way. As a matter of fact 1080p looks quite a bit better than 720p and when you bring it into your NLE it will be pure 1080p. Do a simple test shoot in 720p 24pn and in 1080i 24pA, bring both clips into your NLE and watch them side by side, then come on here and tell us which one looks better.
Phil Maker
Well-known member
What NLE are you using?
OK.
It's true 24p. The CCDs are read at 23.976 with progressive scanning. That's 24p. The data stream is 24p. The only reason 1080i ever enters the picture is because the codec requires that it be recorded that way. But it's true 24p in a 60i stream. You need only remove the pulldown to get the pure 24p back.
The pulldown pads it out to allow it to be recorded as 60i. But it's not "converted" to 60i; think of it as 24p with packing foam around it in order to fit snugly into a larger crate. Then, you take it out of the crate and leave the foam.
(I wish the menu didn't say "1080i/24p" or "1080i/24pA," but that's what it says. It does lead to confusion, as we've seen here.)
It's true 24p. The CCDs are read at 23.976 with progressive scanning. That's 24p. The data stream is 24p. The only reason 1080i ever enters the picture is because the codec requires that it be recorded that way. But it's true 24p in a 60i stream. You need only remove the pulldown to get the pure 24p back.
The pulldown pads it out to allow it to be recorded as 60i. But it's not "converted" to 60i; think of it as 24p with packing foam around it in order to fit snugly into a larger crate. Then, you take it out of the crate and leave the foam.
(I wish the menu didn't say "1080i/24p" or "1080i/24pA," but that's what it says. It does lead to confusion, as we've seen here.)
shiny4
Well-known member
take a look at this article.
http://www.bluesky-web.com/numbers-mean-little.htm
this is an extract :
"Horizontal motion also causes artifacts when interlaced scanning is used. Depending on its speed, horizontal motion in interlaced scanning generates distortions that range from serrated edges, through blurriness, to double images in the extreme case. "
1080 is good for static image but for images in moviment it has a lot of artifact
http://www.bluesky-web.com/numbers-mean-little.htm
this is an extract :
"Horizontal motion also causes artifacts when interlaced scanning is used. Depending on its speed, horizontal motion in interlaced scanning generates distortions that range from serrated edges, through blurriness, to double images in the extreme case. "
1080 is good for static image but for images in moviment it has a lot of artifact
AGAIN . . .
In the HVX, 1080 is NOT scanned as interlaced. It's scanned as progressive.
In fact, in EVERY mode the HVX shoots, the CCDs are scanned as 1080 progressive and then processed as whatever you're shooting -- 480i, 480p, 720, 1080p, 1080i.
1080/24p shot by the HVX is true progressive footage.
If you're planning to edit on a 24p timeline, then yes, you should shoot 24pA, always.
That said, in a 24p timeline in CS3, you should not see any interlacing in 24p standard, either. Can you post some screen shots?
shiny4
Well-known member
from barry hvx book pag.90:
dvcpro-hd 720p is always progressive scan;there is no such thing as interlaced 720i......
.....1080i/24p:this means that the RECORDING STREAM IS INTERLACED,but the images are created as genuine 24p."
so...for what i have understand becouse 1080 mode record in interlacing mode this can cause (not always)that looks like an interlaced footage.
dvcpro-hd 720p is always progressive scan;there is no such thing as interlaced 720i......
.....1080i/24p:this means that the RECORDING STREAM IS INTERLACED,but the images are created as genuine 24p."
so...for what i have understand becouse 1080 mode record in interlacing mode this can cause (not always)that looks like an interlaced footage.
manglerBMX
Veteran
what method do you use in cinema tools to get rid of the pulldown? i've tried a few different methods and it did not work, i too accidently shot at 24p and not A.
Green Hornet
Veteran
It is not the way you recorded it, it is the way you EXTRACTED it to your computer.
It is not interlaced, but extracted as such because that is how you told it to.
If your settings are anything ending in i, then YOU made it interlaced, and that is why it looks the way it does.
Barry is talking about the STREAM.
Yes the stream is interlaced, as that is the only way to move the footage from one place to another. It is like having a 3 layer cake. If you want to move it from one place to the next, it might be easier to seperate the layers, move it, and then put it back together.
if you told your computer the footage is progressive, then it knows that when you move it, that it will need to be put back together as such.
You keep saying you are telling it is interlaced, so it is taking your progressive footage and MAKING it interlaced...hence your problem.
mvb
DVXuser Sponsor
Raylight MXFX for Mac can mass-convert clips from 1080i60/24P to 24PA or to 1080/24P native and preserve the metadata, filenames, thumbnails, etc. See http://dvfilm.com/MXFX
There is a free demo so you can try it and make sure it works