Posted: Sat Nov 20, 2010 3:20 pm
I could repost many of the replies that are already here but instead ask you to read this thread from the beginning.
A few points...
The DVD version is native 24 frame, not 60 frames as you are suggesting. The conversion to 60 frames takes place on the player. Most Hollywood movies on DVD contain progressive flags that tell the player how to perform the 3/2 pull down with the least amount of error. No matter what, any conversion to 60 frames will introduce an uneven motion artifact called film judder.
To take full advantage of a 24 frame output option requires your display to support a refresh rate that is a multiple of 24 as Rodolfo pointed out. As the Panasonic review points out, 48 is still a bit too low and causes visible flicker. That pretty much leaves us with 72 as the minimum. The next step is 96 and the next one is 120. A very cool thing about 120hz LCD displays is the refresh rate is a multiple of 24, 30 and 60 frames allowing it to natively reproduce those rates by simply displaying a frame multiple times without video processing.
To inspect for the 24 frame response you expect, you check for judder. If you still have judder the display is applying video processing, 3/2 pull down, and does not directly support a native 24 frame output.
A few points...
The DVD version is native 24 frame, not 60 frames as you are suggesting. The conversion to 60 frames takes place on the player. Most Hollywood movies on DVD contain progressive flags that tell the player how to perform the 3/2 pull down with the least amount of error. No matter what, any conversion to 60 frames will introduce an uneven motion artifact called film judder.
To take full advantage of a 24 frame output option requires your display to support a refresh rate that is a multiple of 24 as Rodolfo pointed out. As the Panasonic review points out, 48 is still a bit too low and causes visible flicker. That pretty much leaves us with 72 as the minimum. The next step is 96 and the next one is 120. A very cool thing about 120hz LCD displays is the refresh rate is a multiple of 24, 30 and 60 frames allowing it to natively reproduce those rates by simply displaying a frame multiple times without video processing.
To inspect for the 24 frame response you expect, you check for judder. If you still have judder the display is applying video processing, 3/2 pull down, and does not directly support a native 24 frame output.