My first project. 24fps material in 60fps timeline? Help.

[denniss60432671]

Hi guys, I am new and have now read and watched a lot about fps.

I'm currently on my first project and I have 24fps footage and 60fps footage that I want to edit now.

It is recommended to create a 24fps timeline for the 24fps material and reduce the speed of the 60fps material by 40% in order to get a nice slow motion effect for some scenes. So far so good. 

Now I would have liked to leave some 60fps scenes at regular speed because it looks good in some scenes, but 60fps at regular speed in a 24fps timeline doesn't work without stuttering.

Now I have created a 60fps timeline, my 60fps material obviously looks good and I also can play 60fps scenes at regular speed without slowing it down, but so does my 24fps material. Why is that? 

In short, my 24fps footage looks just as good in a 24fps timeline as it does in a 60fps timeline. Why? Is it because I use a TV with 100/120hz? On YouTube videos they show examples, but my 24fps material still looks good. It should stuttering.

I don't understand it. Actually, the 24fps in a 60fps timeline should look terrible?

Any idea why is that?

[Carlos Ziade]

Clips added to a sequence are conformed

When you add a clip to a sequence with a mismatched frame rate, its frame rate is adjusted automatically to match the sequence, while maintaining playback speed.

https://helpx.adobe.com/ph_fil/premiere-pro/how-to/mixed-frame-rates.html

[R Neil Haugen]

Understanding how framerates work is a deep rabbit hole of it's own. Welcome to video editing! And BTW, there are only 50 to 60 other main rabbit holes to also learn about ... yea.

Often you can add media to a sequence of a different framerate and get "normal" speed playback, or set it to slo-mo speed. And sometimes it works easily, some situations are more troublesome.

And some conversions, especially involving 23.976 to 29.97 or vice-versa, can be troublesome. And take some learning. Like 3:2 pulldowns and all ...  fun stuff.