24 Hz/24 FPS

[Ralphy1981]

I'm lucky enough to own a tv which accepts 24 fps and was just wondering what the actual difference is between setting my EP30 to 'Upto 1080p' or setting it to 'Upto 1080p 24Hz'?

I know 24 FPS is the rate that movies are shot BUT what difference will this make to my viewing compared to if I just set the EP30 to play at 1080p 50/60 Hz?

This may sound like a silly question but I don't actually understand what the advantage is of playing the movie at 24Hz?

 

[kingfats]

I'm lucky enough to own a tv which accepts 24 fps and was just wondering what the actual difference is between setting my EP30 to 'Upto 1080p' or setting it to 'Upto 1080p 24Hz'?

I know 24 FPS is the rate that movies are shot BUT what difference will this make to my viewing compared to if I just set the EP30 to play at 1080p 50/60 Hz?

This may sound like a silly question but I don't actually understand what the advantage is of playing the movie at 24Hz?

Hi Ralphy1981
1080p/24 will give you judder free playback.

 

[Ralphy1981]

But 1080p 24Hz only works on HD DVD's right?

 

[Avi]

But 1080p 24Hz only works on HD DVD's right?

I should not work with R2 DVD. There's no need and it would cause an issue rather than solve one becasue PAL DVD isn't encoded at 24fps and is output at 50hz. HD DVD material can only be output at 60hz or 24hz currently.

AVI

 

[kingfats]

But 1080p 24Hz only works on HD DVD's right?

Yep.
If you enable 1080p/24 with SD dvd can cause issues with playback.

 

[Jonstone]

Hi Ralphy1981
1080p/24 will give you judder free playback.

So long as the television not only accepts a 24fps signal but handles it correctly.

If the television accepts the signal but then converts it to 60hz as that is the refresh rate of the screen then you will still get pulldown judder, it just means the television is performing the frame rate adjustment rather than the player.

If the tv can display at a multiple of 24 then that will eliminate judder.

I guess the newer lcd screens that refresh at 100hz would still have to perform a frame rate conversion from 24 fps to 100fps but I am guessing this would lead to far less pronounced judder

 

[Avi]

I guess the newer lcd screens that refresh at 100hz would still have to perform a frame rate conversion from 24 fps to 100fps but I am guessing this would lead to far less pronounced judder

Repeating 24 frames in to 100 cycles (hz) would result in even worse artefacts than 3:2 judder.

AVI

 

[andythescientis]

In my Pio436 I send 1080p/24 which it handles really well, no judder what so ever. You can see the judder when outputting 1080i.

However as said above, when watching a Pal DVD i need to switch from 1080p/24 to 1080i or else the output is all over the place. It just mean you have to remember to change it! I wish there was a way of going into setup without stopping the disc

Again it will depend on the TV what is best, the pioneers are well know for handling 24fps well.

 

[Avi]

In my Pio436 I send 1080p/24 which it handles really well, no judder what so ever. You can see the judder when outputting 1080i.

However as said above, when watching a Pal DVD i need to switch from 1080p/24 to 1080i or else the output is all over the place. It just mean you have to remember to change it! I wish there was a way of going into setup without stopping the disc

Again it will depend on the TV what is best, the pioneers are well know for handling 24fps well.

Most Pioneers will refersh 1080p/24 at 72hz. The last few generation of product will also dectect and reconstruct the 24 frames from HD DVD/BD 1080i/60 input and then refersh at 72hz.

AVI

 

[kingfats]

Repeating 24 frames in to 100 cycles (hz) would result in even worse artefacts than 3:2 judder.

AVI

Yep.

 

[kingfats]

Most Pioneers will refersh 1080p/24 at 72hz. The last few generation of product will also dectect and reconstruct the 24 frames from HD DVD/BD 1080i/60 input and then refersh at 72hz.

AVI

Hi mate
You have to have Pure cinema set to Adavnce.
With this enabled 1080p/24 and 1080i/60 looks and plays identical.