Quote
Hi could someone please elaborate a bit on this?
So if the original footage was 120fps and timeline is 24fps, the transitions and effects will not occur with highest precision?
Most of premiere pro cinematic video tutorials suggest shooting at highest fps that your camera allows thus allowing you to play back at slower fps on a 24fps setting, also allowing for smooth speed ramping/slowing down etc. None of the premiere pro tutorials mention any loss is precision for effects.
Curious what this means, please reply.
pmikep has a good understanding of this, and what I was referring to specifically is timing precision. By that, I mean imagine you have clips from 2 sources on your timeline - one 60p and one 25p.
If you have the timeline frame rate set @ 25, then every frame will coincide with the 25p clip but not the 60p, and if you wanted something to happen on a specific 60p frame you may be out of luck because PD has to discard more than half of them. It will match the 60p clip to the project frame rate by skipping 2 or 3 frames each time so you'd have to settle for the closest available frame.
Conversely, if the project rate is 60fps, then you have full access to every 60p frame (that's what I meant by precision) and PD will simply duplicate every 25p frame plus add in a 3rd one as needed to fit the project's 60p time frame. Stretching the duration of the 25p clips doesn't actually add any video information, but it also doesn't lose any and for the final output PD will just drop one frame every second.
For 120fps projects it's a little different because you're intentionally (I assume) going to be slowing the clip down for very clear slow motion (at least at some point in the final video). Personally I don't ever produce to less than 60p beacuse I want clear, fast (real time) motion, but I can see the allure of a 24fps video for slo mo.
In sort of a reversal of the downside of a low frame rate in my first example, here it's the high
project frame rate that will be "wasted" because everything is going to happen on a 24fps scale in your final output, so there's not really any value in timing things at 60fps.
The
exception here is in any sections where you DO use slow motion, because there you may want to have more (timing) control of when a clip starts or stops and may want finer adjustments if you have things like motion tracking going on.
With all that said, I'd say it's completely your call to use 60 or 24 for your project frame rate. You might want to try a project with each setting to see if one of them either makes more sense given your goals and editing style.
Now that I understand your situation a little better, I don't think either is a "wrong" choice - they just have different benefits and limitations.
YouTube/optodata
DS365 | Win11 Pro | Ryzen 9 3950X | RTX 4070 Ti | 32GB RAM | 10TB SSDs | 5K+4K HDR monitors
Canon Vixia GX10 (4K 60p) | HF G30 (HD 60p) | Yi Action+ 4K | 360Fly 4K 360°