-
AVID Nitrous editors and 720×480 into 720×486
Hey, guys,
Here’s the situation. There’s an effects house that is taking our 720×480 dv files and importing them into AVID Nitrous at 720×486 (they say that’s all they can do it at), doing paintwork, then exporting back out as 720×486.
The situation is this… AVID is first scaling the 480 into 486 then converting into a lower field omf file for use in their AVID.
It’s spreading the fields farther apart and making the images softer. Is there a setting in AVID to stop this scaling and instead leave 6 lines black instead.
Thanks for your help
-
2 Replies
-
I’m not sure if Avid has a solution, but I have my own workflow in this situation. I bring the DV footage into a 720×486 After Effects comp, and do three things… I make sure that AE does no deinterlacing on its own. I make sure that AE doesn’t scale the footage. I then move the DV footage up one scan-line (or, one pixel in the Y-axis).
By not allowing After Effects to deinterlace the footage, the footage will remain sharp. A 480 tall piece of footage is six scan-lines less than a 486 comp, so the 480 footage’s field order is out of phase. (The 480 footage is placed in the middle of the 486 comp. That leaves 3 scan-lines at the top and bottom. Three is an odd number) When you move the footage up one pixel or scan-line, you then bring the field order back in line.
If I need to, I can probably provide a better explanation. Let me know.
-
Thanks,
I understand this process… the folks I’m working for I mentioned could have actually done this with the FCP DV outputs from their timeline with a +1 field and 486 timeline and render.
But, that did not happen and it’s too late for them.
The effects house moved on with the softness issue – apparently not noticing and not including such extra efforts in their estimate – and too much footage has already been delivered as is.
I had just asked them to purse a setting in AVID to correct this if there was one. Perhaps a compromise of relinking to footage a second time with different import settings could help everybody out.
Thank you for your thoughts and confirmations.
Reply to this Discussion! Login or Sign Up