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24 FPS Explanation

Discussion in 'Blu-ray players' started by ARGUS_328, Dec 7, 2008.

  1. ARGUS_328

    ARGUS_328 Regular member

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    Hey Guys, I'm kinda new to the whole Hi-Def thing....could someone please explain what the 24FPS does for me? The guys at Best Buy and Circuit City dont even know what that is, when I asked them....hehehehe, It probably would help to know your product right? So do I want to enable it? I have two blu-ray players, the first is a PS3, and the other is a Sony BDP-S350. The both use the HDMI cable. My PS3 is hooked up to is a Samsung LN32A550 (a 1080p HDTV) and the BDP-S350 is hooked up to an older Sony KDL-40S2000 (a 1080i HDTV) thanks in advance for any info! This site is awesome!
     
  2. error5

    error5 Regular member

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    Movies are usually filmed at 24 fps or 24 frames per second.

    When a movie is converted for broadcast it undergoes a process called telecine. This involves conversion of the 24 fps material to 30 fps (more accurately 29.97 fps). This has to be done since TV in the US and other countries have a 60Hz vertical scanning frequency and video is broadcast at 29.97fps.

    This conversion from 24fps to 29.97fps introduces what's called telecine judder. Films viewed in a typical 60Hz tv doesn't look as smooth as when you view the same film in a theater. This is usually more evident during slow horizontal camera movements. (To demonstrate this I use the opening credits of Sahara where the camera does a slow pan across Dirk Pitt's room.)

    BluRay movies are stored on the disc at 1080p/24fps and practically all Bluray players including the PS3 have the ability to output the video at 1080p/24fps thru HDMI.

    The best way to take advantage of this - and to eliminate telecine judder - is to have an HDTV that can display the 1080p/24fps signal without converting to 60Hz. Each frame is displayed 3x (72Hz), 4x (96Hz) or 5x (120Hz).

    http://en.wikipedia.org/wiki/Telecine
     
  3. ARGUS_328

    ARGUS_328 Regular member

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    Very nice explanation.....so It probably doesnt look like I can take advantage of the 24FPS with the two HDTV's I listed.....Thats too bad,...but hey I learned something!
     

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