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720p30 vs 720p60
Hi,
I have a questions regarding the Panasonic P2. What is the difference between shooting 720p30n at 29.97 and shooting 720p60 at 59.94? Is there an advantage to one or another?
Also, what is the difference between shooting 720p30 and 720p30n? What is the significance of the “n”?
Any help would be much appreciated…
Andrew
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3 Replies
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It’s more what you are expected to deliver. 720p/60 is a common broadcast format but of course it’s going to take twice as much recording space.
Noah
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720p60 records the highest frame rate possible with a regular video camera. 720p60 is easily downconverted to standard def 480i. A Kona card does a nice job on that.
720p30 is recorded to the P2 card as 720p60 with flags embedded in the recording to tell the capture software to remove the duplicate frames on ingest. So, you are recording 60 frames per second but only using half of them in your edit.
720pN30 records only 30 frames per second (29.97 really) to the card. So, the pN30 mode is able to record twice as much time on a P2 card.
Similarly, you can record 720p24, which records 60 frames per second to the card, or 720pN24, which records only 24.
Barry Green’s The HVX Book is good. Also this on formats:
https://manuals.info.apple.com/en/FCP6_HD_and_Broadcast_Formats.pdf
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one question to piggy back on this…
I have decided to take 1080i60 footage and convert to 720p60 within my project. I was noticing some interlacing (DOH) when working in 1080i graphics in Motion. So I decided to go 720p60. My question is, I still don’t understand all the benefits of 720p60 over 720p30 , if there are any. If I’m producing for DVD/Blu-ray, should i use 720p60, or is that only if I;m editing for braodcast? What are the benefits or pros and cons of 30p and 60p.. I’ve been trying to find some articles but can’t find anything conclusive or coherent.
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