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Old 12-06-2007, 01:20 PM   #1  
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Default 120hz

what diff. does it really make? i was watching the demo on the display but couldn't tell the differences too much.....

hz... read hertz?
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Old 12-06-2007, 06:23 PM   #2  
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After reading this article I don't think I would bother with it....

http://reviews.cnet.com/4520-6449_7-...-1.html?tag=ms

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Old 12-06-2007, 09:44 PM   #3  
What's all this, then?...
 
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Only you can decide whether you notice a difference and if you do, whether it's worth the extra money.

That article is unfortunately not up to CNET's usual standards because it lumps together the constant judder caused by the fact that films are recorded at a slow frame rate (24 Frames-per-second) and irregular judder caused by converting 24 Frames-per second-film to a 60Hz refresh using 3:2 pull-down.

Film fans, in general, would like to see films displayed at 24 Frames-per-second without pull-down, perfectly recreating the look of the film as projected in a theater. On an HDTV, this is best accomplished with a 1080p/24 signal and a display that will accept a 1080p/24 input, then refreshes the screen with even pull-down of 3:3 at 72 Hz or 5:5 at 120Hz.

Pull-down judder is completely different from the judder that is inherent in all film motion all the time as a result of filming at only 24 Frames-per-second. Most of these 120Hz displays deal with this by synthesizing new frames between the real frames using interpolation. This smooths out the motion and can look quite good on video sources, such as a sporting event, but is regarded negatively by many film fans as it gives the film the look of video--too much of a "real" presence which hurts the suspension of disbelief necessary for films.
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Old 12-06-2007, 09:49 PM   #4  
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Yeah, I'm wondering whether or not to spend the extra $800-$1000 for the Samsung 4671 (120hz) over the 4665.

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Old 12-06-2007, 10:26 PM   #5  
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Well i think its worthwhile in the long run always.
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Old 12-07-2007, 11:40 AM   #6  
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so.. do plasma's also have 120hz? but i heard plasma doesn't motion blur, or very little at least.
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Old 12-07-2007, 11:44 AM   #7  
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Some Plasmas have a selectable 72Hz refresh rate which allows them to achieve 24 Frame-per-second playback without judder.

Plasma response time is dramatically faster than LCD, so they don't need 120Hz refresh to minimize motion blur, but AFAIK, no Plamsa displays have the frame interpolating to simulate a higher frame rate.
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