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24P Is that an issue in HD?

07-13-2004, 02:01 PM
Currently a company I work for shoots most things in a 24P camera which is actually running at 29.97 or 30fps and does it's own 3:2 pulldown in camera. Is this something to be dealt with in HD? Or will HD cameras shoot at true 24 fps or something like 23.97 so then we'll have to deal with different frame rate cameras, decks, etc.? So we could in theory get in a tape shot and running at 24fps and another shot and running at 29.97/30fps?
Does anyone know of any resources where I can find out more about all this?

07-31-2004, 01:32 AM
The professional HD cameras have now been equipped with 23.96 psf frame rate as well (at 60Hz), after a long time working with 29.97 frames per second at 60Hz in the interlaced mode. So we are finally able to get true 24 progressive segmented frames captured, which is a lot better in editing. As for consumer products, there are a few available but I do not know (but I hope) they come up with the same standard. The question then is only whether they record in 720p (1280x720) or 1080i or 1080p (1920x1080). To really capture the full 1080p image in its full glory, you would need a vertical resolution of 1440 lines anyway, to get a stable signal at that frequency. So I guess that at least for consumers the industry may (just as with the vast majority of HD displays) settle for 720p.

Hope this helps,

Torsten :)

Torsten Kaiser
Managing Editor
Review & Newspaper - Productions in High Definition & for DVD
e-mail: [email protected]

Tim Lorenz
08-06-2004, 11:09 AM
Both the Sony and Panasonic camera are switchable to 24p (actually 23.976). The Sony can record in true 24p but that is only used for film out apps.
When played back at 30fps (actually 29.97 or 59.94i) the machines automatically add pull down fileds giving the footage a film-like quality when film is viewed on TV. Most edit systems handle this easy with a few being able to remove the pulldown and edit in native 24.