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Field order/using Field Options
Hey all,
I am continually trying to find ways to streamline my show edit process. I edit footage from Beta SP ingested with the DVCPRO50_NTSC preset and, early on, I noticed an improvement in the video quality when I changed the Field Options to ‘always de-interlace.’
For instance, in a recent clip I decided to test what the difference really was so I reset the Field Options to ‘none’ with a clip visible in the monitor. As soon as I clicked okay the subject’s face showed a distinct glitch. It was a full shot and the top part of his head was offset a little from the bottom part. Resetting to ‘always de-interlace’ removed the glitch.
What I’d like to do, however, is have my sequence set so that I don’t have to touch Field Options. Especially since, if I forget to change the field options before I start cutting, I end up with 50+ clips to change. I thought that ingesting as DVCPRO50_NTSC and using the P2 DVCPRO50_NTSC sequence setting (which is the closest I have in my sequence presets) would eliminate conflicts, but apparently I’m missing something.
Any ideas would be greatly appreciated.
le**********@***il.com
https://www.wix.com/Rotenbard/version-2 -
4 Replies
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What you are seeing might be totally normal for interlaced footage – two fields of video make up each frame, and the fields are 1/60 second apart in time, therefore there will be movement between the two fields. During playback, this aids in providing smooth motion, but when looking at a freeze frame, it can look odd as computer displays are not interlaced!
Try this – right click in the Program Monitor window and find the FIELDS option, probably set to BOTH by default. Change to “Field one” or “Field Two” and see how that looks. Should remove the interlace artifacting. This does not affect final output, but just the preview.
By deinterlacing the footage, you are throwing away half the resolution. If going back to video tape, DVD, or broadcast, better to keep interlaced footage interlaced usually.
However, if exporting for YouTube, or any online or computer viewing, you can set the FIELDS to PROGRESSIVE in Adobe Media Encoder, as you don’t want interlaced video for computer viewing. But generally you would not deinterlace in Premiere.
Hope this helps
Jeff Pulera
Safe Harbor Computers -
Thanks for the quick response!
Okay, so I’m gonna do 2 separate outputs.
My producer views the files via computer which means a progressive output.
We also upload an OP1a IMX30 NTSC file to a captioner, who then uploads a digital file to the station (not sure what format). What I don’t know is whether the OP1a file needs to be progressive or interlaced.
Regardless, what you’re saying is that I can do all that at export instead of messing with individual clip settings. Right? 🙂
lesarmistead@gmail.com
https://www.wix.com/Rotenbard/version-2 -
Correct – if going to broadcast or DVD, no sense deinterlacing interlaced material in most circumstances. For web exports, just set fields to PROGRESSIVE in AME settings then.
Jeff Pulera
Safe Harbor Computers -
Thanks a bunch, Jeff!
I keep learning.
lesarmistead@gmail.com
https://www.wix.com/Rotenbard/version-2
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