Can 25 fps be converted to 24 fps ?

[surferadi96]

My camera records in 25 fps and i wanted to convert it to 24 fps (just to achieve the film look) so can that be done inside of after effects just by going into the comp settings and changing the frame rate from 25 to 24 ?
And, will there be any artifacts on the video because of this ?

[poisondeathray]

Do you have audio ? or is sync not a consider for this project ?

Yes it can be done in AE, set your comp to 24fps, and right click the footage in the clip bin to interpret the file as 24fps. This will slow down the clip, without adding/dropping frames (same framecount, just slowed down playspeed) - so no artifacts

You don't need AE for this, it can be done in any NLE, even free ones



"Film look" involves many more factors than frame rate. Furthermore 25=>24fps won't suddenly make it look like film. The difference is neglible. If it wasn't "filmic" to begin with the speed change won't affect the appearance much

[surferadi96]

Do you have audio ? or is sync not a consider for this project ?

Yes it can be done in AE, set your comp to 24fps, and right click the footage in the clip bin to interpret the file as 24fps. This will slow down the clip, without adding/dropping frames (same framecount, just slowed down playspeed) - so no artifacts

You don't need AE for this, it can be done in any NLE, even free ones



"Film look" involves many more factors than frame rate. Furthermore 25=>24fps won't suddenly make it look like film. The difference is neglible. If it wasn't "filmic" to begin with the speed change won't affect the appearance much

Yes, it has audio and syncing the audio is quite necessary.

[jagabo]

I suspect your 25 fps is interlaced. That gives you 50 different picture s second (rather than 25) making it much smoother than film. The difference between 24 and 25 is negligible as far as the jerkiness of film is concerned. Almost all movies run at 25 fps on PAL systems and nobody complains that the "film look" is lost. The "movie" vs "tv" look has more to do with lighting an depth of field.

[surferadi96]

I suspect your 25 fps is interlaced. That gives you 50 different picture s second (rather than 25) making it much smoother than film. The difference between 24 and 25 is negligible as far as the jerkiness of film is concerned. Almost all movies run at 25 fps on PAL systems and nobody complains that the "film look" is lost. The "movie" vs "tv" look has more to do with lighting an depth of field.

It is 50i indeed !

[poisondeathray]

RE: the audio

Most people would do a PAL slowdown. So the audio is slowed down and stretched the same ratio as 25/24 if your end goal was 24.0 FPS

I don't use AE for this type of audio manipulation, but you can do the PAL slowdown in any audio editor, even free ones like audacity



RE: "film look"

If you didn't shoot with a shallow DoF, ther are things you can do in AE to simulate shallow DoF, like lens blurs. There are many video tutorials on how do to this

Adding grain , and grading can help simulate filmic look as well



If it's 50i, then by default AE will deinterlace to 25p if you have the field setting enabled (e.g. upper field first) - you're just viewing a single field that has been resized in the comp viewer. The deinterlacing quality isn't very good in AE (leaves lot of aliasing and jaggies) . There is a bit of a learning curve, but there are better deinterlacers in avisynth plugins

[jagabo]

It is 50i indeed !

Then just deinterlace to 25p. That will give you the film jerkiness you want without having to adjust the audio.