DVD Review HTF HD-DVD Review: Zodiac (1 Viewer)

[Douglas Monce]

Digital projection in theaters is 24 frames per second, with a "shutter speed" of 1/48th of a second.

24p does have a fair amount of jitter just by virtue of the fact that it is a pretty slow frame rate. In fact the difference between 24p and 24p at 60hz with a 2:3 pull down is really not that obvious.

Doug

 

[David_Giles]

I just thought that maybe HD video might be shot at 60 fps, unlike film that is 24 fps?!

 

[Douglas Monce]

Well HD can be shot at 60fps interlaced, 30 fps progressive and 24fps progressive. There are other frame rates but they are typically for effects like high speed photography.

The standard frame rate for home HD is 60i or 30p. Digital cinema is 24fps. The big push in the mid 90s was to get HD cameras that would shoot at 24p to match motion picture photograph. Lucas is the one that really pushed Sony to develop the cinealta 24p camera for his Star Wars prequels. One of the major reasons that film looks the way it does is because of the 24fps frame rate. If you have ever seen showscan projected (showscan is 70mm film run at 60fps) it looks astonishingly like video.

Doug