50 fps in a 50 fps project - or 25fps project?

Hi.

My normal working method today is to shoot 50fps 720, then import in a 50fps project. What goes in comes out, basically. I guess shooting in 50fps and then working in the same rate makes the pictures sharper, than simply shooting 25fps and editing in 25...


But.. I need some tips on how to maximize the potensial of my clips. If I shoot in 50fps I do have a lot (2x) more information than a simple 25fps shoot. So would I be better of just editing in 25fps by default? In order to be able to slow down some parts for instance...


I usually don’t use slow mo (as I mainly do ENG). But there are times when I do want to use it, and since it wasn’t planned from the beginning, i did not consider this as I started editing in my regular 50fps project....


Any thoughts, tips and suggestions on this matter would be very much appreciated..


I might add a few more things to think about..

My camera supports 50mbps 50p 720 - but once I go up to 1080 50p is no longer an option, only 25p or 50i (and I have learned to avoid interlacing).

Final Cut Pro X, OS X Mountain Lion (10.8.2), Camera: Sony HDR-cx570e

Posted on Dec 21, 2012 2:17 AM

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2 replies

Dec 21, 2012 2:54 AM in response to Morphyx

Morphyx wrote:

… I guess shooting in 50fps and then working in the same rate makes the pictures sharper, than simply shooting 25fps and editing in 25...…

I start with a plain "No!" … 😉


'sharpness' is, aside 'glas'/focus/ …, dependent on shutter-speed.

slow shutter-speed = more motion blurr.


Ol' Silverbacks from TinsleTown will tell you the 180°-rule … a 25fps should be recorded with 1/50thsec, a 50fps would be 1/100th sec shutter speed - modern camera techniqués allow all sort-of of aparture, speed, iso, fps. But for sure, you can not apply 1/20th shutter-speed to a 50p recording 😁


Sharpness is part of 'quality', defined by resolution & bitrate, for sure focus, but DoF too (the actual 'look' asks for blurry bavkgrounds). But framerate …?


(compare to the actual debate about HFR in The Hobbit)


sooo, the usual question:

What do you want to accomplish, what 'look', what format?

(motion blurr is a wanted effect for all those 'film look'-afficionados)


'ENG' means TVbroadcast - never heard of any station asking for 50fps material (???) …

How do you deliver, what do your clients ask for?


a 50p delivery is rarely seen on Web video - but demands twice the bandwidth.


50p is perfect, when you do lots of slowmo (sports), but your projects then are 25fps.

otherwise, I see no 'use' for 50p in ENG.-



… My camera supports 50mbps …

excellent specs, … and, e.g. minimum for German broadcasters 😉


If you don't do 'for art's sake' your private projects, I would work in a standard predetermined by your contractees.

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50 fps in a 50 fps project - or 25fps project?

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