24p, 25p, 30p, 60p video. Wich is the difference?

[rachi]

24, 25, 30, 60p are all frames/second, right? Ok, so wich is the final dirrefence?

Is there a real difference between 24 and 25p??

My camera is capable of 30 and 60p. 30 is classic speed, right? 60p let me do slow motion? or this is 24p?

 

[Bobby49]

Depending on the shutter speed and the number of frames per second, you get different amounts of motion blue. For traditional film movies, it was 24 frames per second to get the look that was desired. Often for a computer digital movie, you want it to be 30 frames per second. Then sometimes you can shoot with 60 frames per second for fast action, and it may be displayed at 30 or 60. All of those numbers are for NTSC video. If you are in a PAL country, then probably 25 frames per second.

There are also some subtle differences, so you may see frame speeds slightly less than 24, slightly less than 30, and slightly less than 60. Those are just technicalities.

 

[Vesku]

24, 25, 30, 60p are all frames/second, right? Ok, so wich is the final dirrefence?

Is there a real difference between 24 and 25p??

25P (and 50P/50i) is european PAL standard. If you watch 25/50P with 60P monitor the motion is not smooth and vice versa. 24P is movie standard.

My camera is capable of 30 and 60p. 30 is classic speed, right? 60p let me do slow motion? or this is 24p?

The more you increase frame rate the smoother and more clear motion and less noise you see. It is also important that your display uses the same frame rate (or double) than your video if you want best motion.

 

[rachi]

Ok, thanks, it's more clear.

So, how does it work slow motion capture? With my camera (30p and 60p) can I do it? Is there a parametre I have to change in my camera or is something else?

 

[eFilm]

24, 25, 30, 60p are all frames/second, right? Ok, so wich is the final dirrefence?

I'm not quite sure what you mean by "the final difference" (or 'dirrefence,' I like the sound of that )

Is there a real difference between 24 and 25p??

Yup.

24p is the classic movie frame rate used for decades all over the world. It predates TV and video. It was used with analog films and mechanical film cameras, and it's still in use even in most digitally made movies. Although these days the actual digital/electronic frame capture rate may be slightly under 24 frames per second in some cases/regions, but that's another (long) story for another thread.

25p is the TV standard used in most of the world, except in North America. It's close to 24p, obviously, but for different reasons. The frequency of the power grid is 50Hz in these regions, so it makes sense to use a TV/video frame rate that is harmonic to that frequency to avoid flickering. So they use 25 and 50 fps. Very close to the 24p movie frame rate, but not at all the same thing. In short, 25p = TV/video, 24p = movies.

That's the quick, non-pedantic layman's explanation, anyway. You can study all the related details in Vikipedia or wherever you wish. There's plenty of more stuff about frame rates out there.

My camera is capable of 30 and 60p. 30 is classic speed, right?

Nope.

30fps is the frame rate the 'Murry Khans' (les Américains) and the Canoe People of the North are using. The rest of the world is using 25 and 50. 30p = North American TV (60Hz power grid).

Using 30p when shooting in the 25p region like Europe may lead to ugly looking footage where electric lights are either flickering or there will be a visible banding effect in indoor scenes shot in artificial light, or both. Depending on the shutter speed you're using. It works the other way around in the 60Hz land of the Murry Khans, too.

If you wish to make sure your video has no flickering or banding, you ought to use 25p or 50p in Europe. Preferably with a 180 degree (harmonic) shutter angle. (eg. 25p -> 1/50, 50p -> 1/100)

60p let me do slow motion? or this is 24p?

50/60p lets you do slow motion, too. Sort of.

So, how does it work slow motion capture? With my camera (30p and 60p) can I do it? Is there a parametre I have to change in my camera or is something else?

You can shoot your video clips in 60p and then slow the footage down in your editing app like Premiere, FCP and so on. That's the simplest way. Try it yourself and see how it looks.

 

[Stemu]

Very often the viewing device shows the video with wrong frame rate and that is causing unstable motion. Most of the computer monitors run always 60 Hz so only 30 and 60 fps shows correctly.

For that reason I don't understand why people shoot and upload 24 or 24 fps material in network since most of the people will watch that with 60 Hz monitor.

If I want to watch 24/25 fps video nicely I set my media PC HDMI output to 24 or 25 Hz and let my TV to adjust to it. Then it shows like intended.

 

[rachi]

Ok, it's more clear.

I'll try the slow motion with 60p and some softwares.

 

[Richard Frederick]

There is one issue not yet discussed in this thread. When shooting at 30 fps it is recommended that the shutter speed be 1/60 sec.. (24 fps would use 1/50 sec.) If higher shutter speeds are used, the motion can appear to be jerky. Some amount of motion blur helps smooth the visual experience. I am mostly a still photographer and I like full control of my shutter speeds.

If one shoots at 60 fps and uses high shutter speeds (say 1/1000), the "jerkiness"is very much reduced, to I point that I do not notice it at all. Because of this, I shoot my Nikon D-800 at 720p/60 fps instead of 1080p/30 fps.

--**** Frederick

 

[ckeek]

Since 60p is for fast moving object, why some still recommend shoot 24p? Is 24p better than 60p? Can you explain 24p vs. 60p?

 

[Bobby49]

For traditional film movies, it was 24 frames per second to get the look that was desired.

 

[CaliforniaDave]

Since 60p is for fast moving object, why some still recommend shoot 24p? Is 24p better than 60p? Can you explain 24p vs. 60p?

Films are typically shot in 24p, and I don't think that Blu-ray officially supports 1080/60p. So if you want to create and distribute a movie on Blu-ray, shooting in 24p as opposed to 60p might make sense, and not all subjects are fast moving. If you do shoot in 24p, you will have to be careful to avoid fast motion and rapid pans and other camera movements. I think most would say that rapid pans and other rapid camera movements should generally be avoided altogether, whether shooting in 24p or 60p.

Unless you have a compelling reason to shoot 24p, I would just stay with 1080/60p, or 4K/30p if your camera supports that.

As others have pointed out, 24p exists for historical reasons, and some expect it in films because that is what they are used to seeing. Personally, I feel that shooting at a higher frame rate, such as 60p, creates images that are closer to reality for me. Of course not everyone is trying to create images that are closer to reality.

 

[Richard Frederick]

30 fps requires a relatively slow shutter speed (1/60 sec) otherwise the motion can appear jerky. In the film and theater days, everything including projectors were standardized at 24 fps. This suited the motion picture industry which always had the shooting conditions strictly controlled.

Now, everything has changed with viewing devices automatically adjusting (within limits) to the shooting fps and using both progressive and integrated scans. Film video exposes and views each frame as a whole.

No still photographer would use 1/60 sec for a hand-held telephoto shot due to camera shake. One can get away with that in video, because the blur is not as noticeable and serves to smooth out frame to frame transitions. However, if the viewer were to freeze frame or substantially slow the video, the camera shake and subject motion blur would be obvious.

Again, if shooting at 60 fps, the "jerkiness" attributed to high shutter speeds is not so obvious, to the point that I do not notice it at all. Therefore I shoot at 60 fps both to give me the freedom to choose my shutter speeds and to preserve sharpness for individual frames.

 

[ckeek]

People suggesting 24p always claim 24p looks more film like. I wonder how 24p looks more film like than 60P on the TV screen, color tone, sharp or what else. I did not see the difference or I have not found the difference. Can you point out the difference?

 

[Vesku]

People suggesting 24p always claim 24p looks more film like. I wonder how 24p looks more film like than 60P on the TV screen, color tone, sharp or what else. I did not see the difference or I have not found the difference. Can you point out the difference?

It is just the motion what makes 24P look like film.

You may have some motion smoothing system in your TV which "corrects" the stuttering 24P motion to "video like" smooth and pleasing motion.

 

[ckeek]

It is just the motion what makes 24P look like film.

You may have some motion smoothing system in your TV which "corrects" the stuttering 24P motion to "video like" smooth and pleasing motion.

Since 60p is better for shooting motion, why should people not shoot the 60p directly but need to shoot 24p makes its motion look like film? Does 60p not look like film? Where does it not look like film?

 

[CaliforniaDave]

Since 60p is better for shooting motion, why should people not shoot the 60p directly but need to shoot 24p makes its motion look like film? Does 60p not look like film? Where does it not look like film?

Films (on actual film stock) have been traditionally shot in 24p for historical reasons. When someone says "looks like film" in the context of this discussion they are generally referring to the 24p frame rate of traditional film. When panning or when fast motion occurs in the frame shot at 24p, the motion will not be as smooth on screen as opposed to if the scene was shot and projected in 60p. This is generally visible even to the casual viewer, if pointed out. Of course many of the viewing public don't care about or look for the difference between 24p, 30p or 60p.

If someone is trying to imitate the look of a traditional film in terms of frame rate, for whatever reason, then they might want to shoot in 24p instead of 60p.

I am not claiming that 24p is better than 60p. In fact I prefer 60p, and I hope that one day 60p becomes the standard for everything. Much higher frame rates, such as 120p or 240p, really won't be worth it for most general video, but might be useful for slow motion - for example, shoot at 120p, then playback at 30p to give 1/4X slow motion.

 

[ckeek]

I tested 24p 17 M (FH) vs. 60i 17M (FH). The difference is 24p sharper than 60i a little. 24p jerked while camera was panning. I want sharp video but less jerking. My camera other 60 recording setting is 60i 24M (FX) and 60p 28M (PS) but they can only be recorded on the Bluray DVD. So, how to select the best recording setting with less jerking from the following recording setting, 60i 24M (FX), 60i 17M (FH), 60p 28M (PS), 24p 24M (FX) and 24p 17M (FH)? I also want to record it on the regular DVD because I do not have Bluray DVD burner.

 

[Pollos]

I usually go with 25P at 24M Pal video FUllHD : IS it good?

 

[Bobby49]

Do your panning more slowly.

 

[Pollos]

So i need the 50i/p mode for make more fast panning?

I find in my sony A7 this option "25p 24m and 25p 17m": what is the really difference? 25p 17m will have less noise?