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Zooming in (ie Scale up) on AVCHD for a DVD

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Brian Thomas
Zooming in (ie Scale up) on AVCHD for a DVD
on Nov 11, 2011 at 4:04:27 pm

I have some PAL AVCHD clips which I took with my Panasonic TM300 and in the Browser they show as Frame Size 1920 x 1080, 25 fps, Apple ProRes 422, 14.7 MB/Sec, Pixel Aspect Square, Field Dominance (Upper (Odd)

My end product will be a normal DVD.

My question is how far can I reasonably zoom in (ie, the Scale parameter under Basic Motion) and still have a reasonable image on the (Standard Definition) DVD? Is there a simple formula? Might a scale of 200 be OK? A bit more?

Many thanks in advance for any help.

PP 5.5.0, FCP 7.0.3 iMac 24 3.06 4GB OSX 10.7 MBP 17", 2.3 GHz 8GB. Near Geneva, Switzerland


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Chris Tompkins
Re: Zooming in (ie Scale up) on AVCHD for a DVD
on Nov 11, 2011 at 4:53:58 pm

Well if you zoom in while in a 1920x1080 sequence - you will experience degradation and quality loss, even when viewing the SD-DVD.

If you have a fair bit of zooming to do and ONLY going to SD-DVD, then consider working in a SD sequence. That way you have lots of play to work in and around the HD clips...

Chris Tompkins
Video Atlanta LLC


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Brian Thomas
Re: Zooming in (ie Scale up) on AVCHD for a DVD
on Nov 11, 2011 at 5:07:42 pm

Ah - didn't think of that, I'll give it a try. Thanks!

PP 5.5.0, FCP 7.0.3 iMac 24 3.06 4GB OSX 10.7 MBP 17", 2.3 GHz 8GB. Near Geneva, Switzerland


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