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LETS TALK ABOUT 1080p/24fps

post #1 of 14
2/21/08 at 12:59pm
Thread Starter 
I have not found a thread dedicated to just talking about 24fps.
so thought I would start one.
I think I like it.
Many of the movies @ 1080p/24fps look very much like the theater and some not so good.
But would like to hear other peoples thoughts on this subject.
Likes and dislikes, it is it overrated...Hyped?
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post #2 of 14
2/22/08 at 9:28am
Thread Starter 

Re: LETS TALK ABOUT 1080p/24fps

I did learn something
movies were originally shot at 18fps but when sound was added it was too slow for sound and that was the reason for 24fps.
...and a little more on 24fps.... : Adobe After Effects
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post #3 of 14
2/22/08 at 9:51am

Re: LETS TALK ABOUT 1080p/24fps

Quote:
Originally Posted by BrandonH
I did learn something
movies were originally shot at 18fps but when sound was added it was too slow for sound and that was the reason for 24fps.
...and a little more on 24fps.... : Adobe After Effects


Actually, originally movie cameras were hand cranked. To maintain a steady speed, the camera operator would often sing a well known song to himself, to try and keep the pace.

But you are correct, once motors started being used 18fps became a standard, but not the only standard. Some camera men shot at 16fps to save film. By the late teens and early twenties 18fps was pretty much the standard for the film studios of the day. This is one reason why silent films always seem to be running to fast when being run on a modern sound projector.

When sound came in many people wanted to shoot at a higher frame rate than even 24fps, but 24 was chosen because of economics.

Doug
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post #4 of 14
2/22/08 at 1:02pm

Re: LETS TALK ABOUT 1080p/24fps

Quote:
Originally Posted by BrandonH
Many of the movies @ 1080p/24fps look very much like the theater and some not so good.

I´m not sure what are you trying to say here? "Some not so good"?

Most film based movies are shot in 24fps. Blu-ray/HD DVD-releases include that film in the disc at 24fps.

To get that native 24fps out from the disc, you´ll need 24fps HD-player AND also TV/projector that accepts native 24fps.

So if the HD-disc (Blu-ray/HD DVD) is using a proper source and is properly mastered etc. AND you have a HD-player that support 24fps AND the TV that accepts 24fps = You´re all set.

If you don´t have a player AND/OR TV that outputs/accepts 24fps, then you don´t really benefit from it.
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post #5 of 14
2/22/08 at 2:44pm
Thread Starter 

Re: LETS TALK ABOUT 1080p/24fps

Quote:
Originally Posted by Jari K
I´m not sure what are you trying to say here? "Some not so good"?

Most film based movies are shot in 24fps. Blu-ray/HD DVD-releases include that film in the disc at 24fps.

To get that native 24fps out from the disc, you´ll need 24fps HD-player AND also TV/projector that accepts native 24fps.

So if the HD-disc (Blu-ray/HD DVD) is using a proper source and is properly mastered etc. AND you have a HD-player that support 24fps AND the TV that accepts 24fps = You´re all set.

If you don´t have a player AND/OR TV that outputs/accepts 24fps, then you don´t really benefit from it.
I have the set Sony KDS-60A3000 that accepts 1080p/24fps and a player Samsung BD-UP5000 that outputs that too.
The not so good one I have found so far is the Lady in the water. It was better watched with 24fps turned off.
And I don't know why all the rest look amazing IMO at 24fps.
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post #6 of 14
2/22/08 at 3:06pm

Re: LETS TALK ABOUT 1080p/24fps

Well, w/ 24fps output, you *should* lose the judder issue for 24fps (film) source content. The 3:2 pulldown needed for 30/60fps (from 24fps source) causes judder, which can be noticeable on smooth panning shots, certain smooth action sequences, rolling credits, etc.

The judder bothers some people more than others. I sometimes notice it myself, but it's not usually bothersome to me -- most times, it's just the rolling credits that are noticeable to me.

_Man_
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post #7 of 14
2/22/08 at 4:54pm

Re: LETS TALK ABOUT 1080p/24fps

Quote:
Originally Posted by Man-Fai Wong
Well, w/ 24fps output, you *should* lose the judder issue for 24fps (film) source content. The 3:2 pulldown needed for 30/60fps (from 24fps source) causes judder, which can be noticeable on smooth panning shots, certain smooth action sequences, rolling credits, etc.

The judder bothers some people more than others. I sometimes notice it myself, but it's not usually bothersome to me -- most times, it's just the rolling credits that are noticeable to me.

_Man_

There is still a stutter or strobing effect with native 24fps. The 3:2 pull down is only slightly more pronounced than direct 24fps. Honestly I doubt most people would be able to spot the difference most of the time.

Doug
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post #8 of 14
2/24/08 at 8:46am

Re: LETS TALK ABOUT 1080p/24fps

Until you watch the rolling end credits. The difference there becomes obvious.

Vern
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post #9 of 14
2/24/08 at 11:57am

Re: LETS TALK ABOUT 1080p/24fps

Quote:
Originally Posted by Vern Dias
Until you watch the rolling end credits. The difference there becomes obvious.

Vern

I don't see it as radically different. It also depends on the speed of the credits too.

Doug
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post #10 of 14
2/24/08 at 3:00pm

Re: LETS TALK ABOUT 1080p/24fps

I find the strobe effect more obvious in horizontal pans, but maybe that's just me.
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post #11 of 14
2/24/08 at 4:23pm

Re: LETS TALK ABOUT 1080p/24fps

So I have a sony LCD rear projection tv that accepts 1080p/24, however it does not display a 120Hz signal, just 60 Hz. I have my PS 3 in my theater room. Is there any benefit at all feeding the 1080p/24 signal?

thanks,
ej
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post #12 of 14
2/24/08 at 4:26pm

Re: LETS TALK ABOUT 1080p/24fps

Quote:
Originally Posted by Eric-S
So I have a sony LCD rear projection tv that accepts 1080p/24, however it does not display a 120Hz signal, just 60 Hz. I have my PS 3 in my theater room. Is there any benefit at all feeding the 1080p/24 signal?

thanks,
ej

I'm fairly sure that if its not 120hz, it won't accept a 24fps signal with out the 2:3 pull down. It may however accept 1080p, which is not the same as 24fps.

Doug
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post #13 of 14
2/24/08 at 5:48pm

Re: LETS TALK ABOUT 1080p/24fps

No, it says 1280p/ 24, there is a menu setting for it. It's a 46E3000.
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post #14 of 14
2/25/08 at 9:32am

Re: LETS TALK ABOUT 1080p/24fps

A lot of the newer TV's accept 1080p/24, but they do not have a true multiple of 24 frequency (120hz for example). My Phillips 47" TV is like that. So, while it is nice that my TV can do that, all I am doing is switching the 3:2 pulldown from the Blu/Red player to my TV.
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