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Old December 27th, 2010, 05:02 PM   #1
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1080i footage, is this correct ?

I am trying to understand interlaced 1080i .

I am editing footage from a Sony fx 7 .It records at 1080i. When I capture in premeire I set up my project as HDV 1080i 30 (60i). I do the same for creating new sequences. However, upon export I notice intelacing jaggies.

Previously I created my projects as 1080p 30, and did not notice a problem. However , I think that is an incorrect setup due to the footage being 1080i ??

What are the correct settings for creating the project and new sequences within the project.

Thanks in advance !
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Old December 27th, 2010, 08:08 PM   #2
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If your source footage is HDV 1080x1440 60i, then you would normally use sequence & project settings that are identical to those parameters.
You said that you noticed interlace artifacts "upon export"- what format were you exporting to??
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Old December 27th, 2010, 09:03 PM   #3
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in response to what format ?

I am exporting through Adobe Media Encoder to MPG Blu-ray. Should I Deinterlace in Premeire prior to export ?
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Old December 27th, 2010, 09:16 PM   #4
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Did you see interlacing jaggies on your computer's monitor? If so, it's because computer displays that are natively progressive-scan do a particularly poor job of deinterlacing. Those jaggies should not appear on an HDTV set that has good-quality deinterlacing. But if those jaggies show up on even a good HDTV set, something's awry with your workflow.
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Old December 27th, 2010, 09:27 PM   #5
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jaggies

I noticed them in Adobe Media Encoder ( output) while scrubbing the clip. I guess I'll output to a BD-R and evaluate on my lcd tv. Thanks.
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Old December 28th, 2010, 04:47 PM   #6
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Quote:
Originally Posted by Eric Kovacs View Post
I noticed them in Adobe Media Encoder ( output) while scrubbing the clip. I guess I'll output to a BD-R and evaluate on my lcd tv. Thanks.
That would be the absolute best way to see what sort of image quality you really have.
Previewing video on the computer is always subject to various shortcomings that impact the image fidelity, motion rendering, etc.
It would not surprise me that it looks amazing on BR HDTV.
Whenever I am doing a project destined for BR, I always burn out draft versions on a rewriteable BD & view on HDTV for quality control & feedback on the project.
Good luck...
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Last edited by Robert Young; December 28th, 2010 at 07:37 PM.
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