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What to do with real 1080p30 footage?

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Nicolas Forest
What to do with real 1080p30 footage?
on Aug 16, 2012 at 12:51:25 pm

Hi,
We all know that most editing system and cameras are working with NTSC compatible format in HD. So since people are saying 1080i60, we know it's probably 1080i59.94.

But how could we manage a real 1080i60 or 1080p30 footage? Not NTSC compatible? Why those frame rate have been created, what is their future use?

Thank you for helping me!
Nic


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Shane Ross
Re: What to do with real 1080p30 footage?
on Aug 16, 2012 at 2:28:35 pm

Every single format you list is 29.97fps. That is the standard frame rate for 1080 NTSC video.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Nicolas Forest
Re: What to do with real 1080p30 footage?
on Aug 16, 2012 at 3:02:16 pm

I'm not sure that a REAL 30p is the same thing as a 29.97p.

That's the language we are using, but in reality 30p could be a format by itself.

So why there is 29.97; 30; 59,94; 60 (Maybe I should talk in Hz to avoid confusion) only 29.97 and 59.94 are NTSC compatible, a REAL 30 and a REAL 60 aren't compatible. What is their used?

Thank you!
Nic


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Ryan Holmes
Re: What to do with real 1080p30 footage?
on Aug 16, 2012 at 3:11:20 pm

I think you're confusing frames per second with fields per second. 1080i60 is 60 fields per second, but those 60 fields comprise 30 frames (alternating odd and even).

If by "REAL" you mean progressive, as in 24p, 30p, and 60p. Then you're discussing progressive vs interlaced. All of which are still based on standards. Remember, 60p is different from 60i. Those little letters at the end are important.

All these frame rates are set standards. 29.97, 59.94 (commonly called 60i), all adhere to the NTSC broadcast standard.

http://en.wikipedia.org/wiki/Frame_rate

Ryan Holmes
http://www.ryanholmes.me
vimeo.com/ryanholmes


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Shane Ross
Re: What to do with real 1080p30 footage?
on Aug 16, 2012 at 4:57:12 pm

Very RARELY is anything 30fps straight up..or 60fps straight up. They are either 29.97 or 59.94. There was the early Canon 5D that shot straight up 30fps...because it wasn't originally intended for use as a broadcast camera. But cameras...most of them...shoot in broadcast formats.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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