Exporting upperfield to lowerfield
by Yves De Muyter
on
Feb 29, 2008 at 5:49:58 pm
I need to export an upperfield project (Decklink project) into a quicktime DV file which is lowerfield. Premiere PRO 1.5 and CS2 seem to skip the field-order settings? Whatever I tell it to use for field order, I always get an upperfield quicktime file!
Does anybody know of a solution, or can someone tell if CS3 would fix this problem?
Re: Exporting upperfield to lowerfield by Darren Edwards on Feb 29, 2008 at 9:25:01 pm
Inside PPro 1.5.1
Select:
- File
- Export
- Movie
- Settings
- Keyframe and Rendering
- You will be offered a choice: export as Lower Field
First, Upper Field First or Progressive. Clicking its
'Deinterlace Footage?' box will render out a non-field
progressive-ish version. I say '-ish' because the
footage will not really look the same as footage
shot progressive natively, and you will lose some
vertical resolution (sharpness) when PPro crunches
those interlaced fields together for you.
Re: Exporting upperfield to lowerfield by Yves De Muyter on Mar 1, 2008 at 9:55:26 am
Did you ever try your solution? When I try setting this to "lower field", the resulting clip is still upperfield. Setting it to upperfield, the resulting clip is also upperfield.
Re: Exporting upperfield to lowerfield by Jon Barrie on Mar 1, 2008 at 10:16:47 am
This situation can be solved a couple of ways.
Because the footage was ingested into the computer upperfield it is going to have to be that way. unless it's actually doing weird things in the edit. in which case the clip can have the fields reversed inside FCP.
However if the problem isn't actually occuring in FCP with the upperfield first because that's the way the motion is working (reversing field order makes it jumpy) - then leave it.
If you do need, i mean you've tested this in FCP and the clips are so long you don't want to fix them in FCP and you really need to send out the field order in a different way.
1. you need to right click the clip in the timeline, goto field settings and hit reverse. this will make the order reversed.
Then export with the lower field setting and you should be on easy street. Without seeing this in person I can't be certain it actually will need the field re-ordering. Unless it causes issues in FCP. It all comes back to the captured order, flipping it will make it weird. FCP should be able to switch field order with an effect. Done it plenty.
- Jon :)
How many editors does it take to change a light bulb?
Re: Exporting upperfield to lowerfield by Jeff Brown on Mar 5, 2008 at 4:30:08 pm
Possible solution Yves:
Shift the image by one line vertically. You might be able to do this by cropping one line off the top and adding one line to the bottom? This would effectively reverse fields.
But I have not tried this.
Re: Exporting upperfield to lowerfield by Yves De Muyter on Mar 6, 2008 at 6:36:13 am
When I try to move the picture by 1 line, Premiere does nothing until I move the picture by 2 lines. That means Premiere tries hard to keep the field order. I'll try the cropping way tomorrow.
Re: Exporting upperfield to lowerfield by Jon Barrie on Mar 6, 2008 at 12:32:39 pm
I'm not sure what your problem with the upper field lower field is. Have you tried importing it into the project? If there is a problem there. Fix it in there by reversing the field order in clip settings in timeline.
Why does it need to be quicktime. There is more to this story. Give us the whole picture.
- Jon :)
How many editors does it take to change a light bulb?
Re: Exporting upperfield to lowerfield by Colin Browell on Mar 11, 2008 at 12:21:04 am
If I remember correctly, the lower field setting is only used when footage needs to be re-rendered. That's probably why the output is still upper field first.
mentions in the section "Changing the Field Order" to select both "reverse field dominance" and "interlace consecutive frames". I seem to remember doing this a few years ago and it worked fine.
