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24fps vs 25fps vs 50i


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#1 Jono Tinne

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Posted 10 June 2014 - 10:43 AM

Hey guys i'm relatively new to the actual film recording industry and I was wondering if anyone could help me out with the pros and cons of 24fps, 25fps and 50i. Thanks!


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#2 Brian Drysdale

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Posted 10 June 2014 - 11:41 AM

24 fps is the theatrical frame rate, commonly used in NTSC countries as a universal frame rate for shooting progressive frame video in NTSC countries, with the advantage of having the same universal frame rate as film. Commonly used to give a film look to video or digital media. It has less temporal resolution than 60p.

 

25p is the frame rate used in PAL countries and is used to shoot progressive frame video in those countries.50i is interlaced video and has a higher temporal resolution by splitting each frame into two fields, but has the downside of not being complete frame, but alternate video lines, so more prone to artifacts with visual effects. It's a means of compression from the early day of television. Both of these don't give flicker in 50Hz countries with lights like fluorescents.


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#3 Jono Tinne

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Posted 10 June 2014 - 01:25 PM

Oh ok, but would 25fps be ok for film in the sense is it very far off from that look? also I hear in cinemas they double the frame rate to 48fps so does it really matter? Thanks for the reply!


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#4 John Holland

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Posted 10 June 2014 - 01:27 PM

I think at this time only the Hobbit thing films have been shot 48 fps . So stop worrying .
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#5 Jono Tinne

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Posted 10 June 2014 - 02:26 PM

Right ok thanks. 


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