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Basic HD Question

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Neal Klaeser
Basic HD Question
on Oct 26, 2011 at 4:55:33 pm

I shot some footage on my HPX170 at 720p/30pn and brought it into FCP. I opened a new project and decided to drag my footage onto my timeline and it prompted me to change the settings of the timeline to match the footage settings. OK, I did. I go to settings and it tells me the frame size is 960x720.
I thought it would read 1280x720? So I go to the pull down menu next to the frame size tab and there is a setting for HDTV 720p (16:9) and there is a tab that reads HD720 (960x720) 16:9.

Neal Klaeser
Real to Reel Productions
http://www.realvideopro.com


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Shane Ross
Re: Basic HD Question
on Oct 26, 2011 at 5:06:17 pm

DVCPRO HD is an anamorphic format. Meaning squeezed. So instead of full raster 1280x720 it is 960x720. Editing apps stretch it back out to full screen.

Shane

GETTING ORGANIZED WITH FINAL CUT PRO DVD...don't miss it.
Read my blog, Little Frog in High Def


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Neal Klaeser
Re: Basic HD Question
on Oct 26, 2011 at 5:11:51 pm

If I am having someone create moving graphics or still images for this project should I tell them 960x720? Because that is the aspect ratio for this project?

Neal Klaeser
Real to Reel Productions
http://www.realvideopro.com


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Alan Okey
Re: Basic HD Question
on Oct 26, 2011 at 5:12:36 pm

DCVPRO HD is not a full-raster HD format. It squeezes the image and records a 4:3 960x720 image with anamorphic pixels for 720p (or 1280x1080 for 1080i/p), then stretches the image back out to a 16:9 ratio on playback. This is done to reduce the bandwidth necessary to record the signal.

Other formats such as XDCAM EX or AVC-Intra record a full-raster 1280x720 or 1920x1080 square pixel image.


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David Dubé
Re: Basic HD Question
on Oct 26, 2011 at 7:47:07 pm

I would create my graphics in 1280x720 square pixels, someone please correct me if I'm wrong.


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Shane Ross
Re: Basic HD Question
on Oct 26, 2011 at 7:49:35 pm

I concur. Have them made 1280x720 full raster

Shane

GETTING ORGANIZED WITH FINAL CUT PRO DVD...don't miss it.
Read my blog, Little Frog in High Def


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Neal Klaeser
Re: Basic HD Question
on Oct 26, 2011 at 7:55:12 pm

Thank you for all the information.

Neal Klaeser
Real to Reel Productions
http://www.realvideopro.com


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Bret Williams
Re: Basic HD Question
on Oct 27, 2011 at 4:54:50 pm

Don't edit in a 960x720 sequence though. Otherwise you're completely losing the point of the 1280x720 graphics. Graphics made in DVCProHD (or placed in a DVCProHD sequence) will have noticeable stair stepping nothings like angled lines and curved letters. Especially in 720 vs 1080. You want to work in a 1280x720 Pro Res sequence. You might want to work in a 1920x1080 sequence in your graphics are a more substantial part of your show.


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