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Re: Pixel Aspect Ratio Correction....

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Re: Pixel Aspect Ratio Correction....
by Darby Edelen on Mar 10, 2008 at 6:08:44 pm

Here's a shorter (and hopefully simpler) explanation:

1. Interpret your footage as whatever it is.

2. Create your Composition to reflect whatever the final output will be stored on.

So if your footage was shot in DVCPRO HD 1080 it has a 1.5 pixel aspect ratio. When you import the footage make sure that it is interpreted with that pixel aspect ratio.

If you are putting your final output back onto DVCPRO HD then you should create your composition with a 1.5 pixel aspect ratio. If you are putting your final output on HDCAM SR or hard drive for HDTV then your composition should have square pixels (because HDCAM SR uses square pixels... and so does HDTV... use the HDTV presets). However, HDCAM (not SR) uses a 1.33 pixel aspect ratio, so if you're printing to HDCAM after output create your composition with a 1.33 pixel aspect ratio.

So the mantra is:

1. Interpret your footage as whatever it is.

2. Create your Composition to reflect whatever the final output will be stored on.


Darby Edelen
Designer
Left Coast Digital
Santa Cruz, CA


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