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Frame Rate Question

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David Jones
Frame Rate Question
on Mar 26, 2010 at 5:08:51 am

Hi Everyone,

I have a project (a documentary film) that is shot on super-16mm film @24fps. It will be transferred to a hard drive for finishing. My question is, if it ends up needing to be output to HDCAM @1080i, should I keep it at 24fps all the way through editing, or should the film be transferred @ 23.98PsF? Or is that what it would be transferred at anyway?

Thanks in advance!

Dave J


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Stuart Smith
Re: Frame Rate Question
on Mar 26, 2010 at 2:58:07 pm

yeah, 23.976PsF


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Robb Harriss
Re: Frame Rate Question
on Mar 26, 2010 at 2:59:18 pm

what's the final output(s)?

Non-linear: all the time and nothing but.


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Rafael Amador
Re: Frame Rate Question
on Mar 26, 2010 at 3:03:29 pm

If the stuff is real p24, conform it to 23'98.
rafael

http://www.nagavideo.com


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Dave LaRonde
Re: Frame Rate Question
on Mar 26, 2010 at 4:49:08 pm

[Rafael Amador] "...conform it to 23'98....."

...which is, of course, just a nickname for the actual frame rate of 23.976 frames/sec. You have to be careful about that.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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David Jones
Re: Frame Rate Question
on Mar 26, 2010 at 5:56:24 pm

Thanks everyone.

I also just wanted to make sure that if the final output was HDCAM 1080i, that the transfer to 23.98 from film shot at true 24fps wouldn't cause some sort of "jerky" video issues.

Dave J


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Rafael Amador
Re: Frame Rate Question
on Mar 26, 2010 at 6:37:40 pm

[David Jones] "I also just wanted to make sure that if the final output was HDCAM 1080i, that the transfer to 23.98 from film shot at true 24fps wouldn't cause some sort of "jerky" video issues.
"

David,
You don't need to "transfer" nothing.
You must CONFORM. Your p24 clips will be played at 23'976 fps. No rendering, no degradation, impossible any kind of stuttering or jerky playing..
rafael



http://www.nagavideo.com


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Dave LaRonde
Re: Frame Rate Question
on Mar 26, 2010 at 9:19:45 pm

[David Jones] "I also just wanted to make sure that if the final output was HDCAM 1080i, that the transfer to 23.98 from film shot at true 24fps wouldn't cause some sort of "jerky" video issues. "

The jerky video issue crops up if the footage's frame rate REMAINS at 24fps and is not changed to 23.976, aka 23.98. Why? Because you're going out to tape. In NTSC-Land, the film frame rate is 23.976.

You'll have extra fun if you shot sync sound on a different device than the camera.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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