Does FCPX manage 120fps? I saw only till 60. Tks

Question

Hi. I start to make movies with FCPX et I want to make slowmotion. I'll get the GoPro HD3 and i want to use the 120fps. But Can FCPX manage it? I saw it could only manage 60? Tks for your answer.

Answer 1

I want a 120 fps timeline to make 120 fps videos.
While the 120 and 240 hz tv's out there only do interpolation and only accept 60 hz hdmi input, a few 120 hz computer monitors came out in 2012 that accept 120 hz.
http://www.newegg.com/Product/Product.aspx?Item=N82E16824236293
I want to have videos play at 120 hz, not just only utilize it for comptuter game rendering.  Part what makes the new gopro hero3 black so awesome is 720p120.  I want to record in this format, play it back realtime @ 120 hz for super smooth action.  I do not want to edit it down to slow mo.  This is very difficult, and quicktime player 7 pro seems to be the best tool to crop and splice (I haven't tried playing any 120 fps native gopro files on any 120 hz monitors, don't know if that works with any current players or not), with "add to selection and scale" being very useful.
Saying  the eye/brain can't tell above 60 is laughable, take away motion blur (computer games or timelapse) and it's obvious.  Playing quake on an old crt I could easily tell 60, 85, and 120 hz apart.  move your mouse quick across your screen.  if you had enough hz, it wouldn't be a jumpy trail where you see 6 different pointers spaced inches apart, it would be blurred.  Motion blur is why movies get by with 24, but if something moves, and you track it with your eye, it's still blurry.  I hate motion blur and don't want it in my timelapse projects. 
I have made a few timelapses of driving where I speed up footage 10x, each utility pole or tree passing by jumps 3 feet between frames at the edges when it passes by (6 fps sped up to 60 fps).  same for cars going other direction.  watching at 60 fps you can see this jumpy ghosty effect easily (persistance of vision).  to make it go away you either sacrafice image quality and don't give the eye the opportnity to track objects and lose freeze frame detail by using motion blur, or you add more frames.  120 hz would have the poles moving 1.5 feet per frame (still not overlaping itself in frames), and only when you get to 240 hz would the pole move not jump across the screen.  I would like playback the same 10x speed driving timelapse on 60 hz, 120 hz, 240 hz, and 480 hz monitors to compare and see if the upper limits for my eyes are satisfied by any of those, maybe in a few years.  From how 30 and 60 fps look now, I can almost guarantee I could tell 120 and 240 hz apart.  Driving timelapse is maybe one of the rare sources that makes this stand out so much, but it's one that annoys me.
Maybe you can't tell the difference with stuff you watch, but that's the same argument that people are saying 2k hd is enough and 4k and aboveis a waste, but 4k and 5k are options in FCP, so I think 120 and even 240 fps timelines should be too.  500 fps and 16k is my guess for what is enough for human vision limits
No driving ones online yet, but here's one of mine walking the golden gate bridge at 20x.  you can see the issues with the cars well on youtubes weak 30 fps.  I also wish the auto zoom for stabilization could be turned off in FCPX to make the frame move like in this video .  web compession is rough on these timelapses too, make sure to view at 720p.
http://www.youtube.com/watch?v=ZW4SjVnxchQ