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720/25P vs 720/25PN ?
Can anyone explain the difference. Which one should I be using in the UK, what is the technical difference between the two and why would you use one over the other. Somebody told me the difference is that one cab be ported out via Firewire and the other can’t and that one uses up twice as much space on P2 card over the other?
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20 Replies
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Forgot to mention, I’ll be using P2 cards and a Firestore FS100 to shoot on from my HVX200.
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I’m really curious if there’s any difference at all between these two in PAL land, as the stream is actually natively p25 and the data-amount should not differ any from i50.
In NTSC land you save a lot of soace as the p24 stream in 24p mode is saved within an i60 with pulldown, and recording natively in p24 (pn) saves about 50% of the data, but in pal…
The thing I’m most curious about is how you’re planning to edit your 720 p25 material.
That’s sorta the question which is keeping the rest of us on the fence these days.
Gunleik
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Not a PAL guy but logically there is no such thing as 25PN- as it would be the same amount of frames as 25p. Only in NTSC land do we have a pulldown.
Noah
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My PAL HVX200 has settings for 720P/25P and 720P/25PN so there must be some difference in PAL land. As for editing 720P/25P footage; this next production is going to take 8 weeks to shoot, which starts in 2 weeks time hence in 10 weeks FCP or AVID should have an editing option. If they don’t I’ll just archive the footage until one or the other does. Apple should release at developers conference, which is when again?
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There is. 720p25 is stored in a 1080i50 stream so every other frame is redundant.
720/25PN only stores the non-redundant frames and uses half the space. So
generally you should use 720/25PN for recording to a P2 card, 720/25P for streaming over
firewire. Right now Raylight https://dvfilm.com/raylight is the only editing solution for
720/25P and it requires that you use 720/25PN. -
The firestore cannot capture the PN modes. No 24PN, no 25PN. 60i and 50i (maybe 60p, 50p too) only….with pulldown. It is basically a tape.
Shane
Alokut Productions
http://www.lfhd.net -
Aha- good to know.
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If I record PN to the P2 cards and P to the Firestore, can I mix them both on the same timeline. When Apple support it in FCP that is?
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If I record PN to the P2 cards and P to the Firestore, can I mix them both on the same timeline. When Apple support it in FCP that is? Raylight is a Windoze thing so no good to me.
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If you remove the pulldown from the 24P footage it should work.
Who knows? Haven’t got a Firestore and footage to test. Hopefully someone will.
Shane
Alokut Productions
http://www.lfhd.net
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