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-   -   Is JVC HD*** 24fps or 23.976fps (https://www.dvinfo.net/forum/jvc-gy-hd-series-camera-systems/88182-jvc-hd-24fps-23-976fps.html)

Jack Walker March 5th, 2007 02:42 PM

Is JVC HD*** 24fps or 23.976fps
 
Are the JVC cameras recording at a true 24fps or at 23.976 fps.

To explain what I am talking about, here is a chart about the differences:
http://24p.com/24p_audio_workflow.htm

Tim Dashwood March 5th, 2007 02:55 PM

23.976 (aka 23.98)

All 24P video formats that use 60Hz (59.94fps or 29.97fps) as their base will actually be 23.976 in a pulldown. This includes film to tape telecine transfers. The exception is a PsF systems like HDCAM which can actually clock itself to exactly 48Hz if needed, but it would still need to playback at 23.976 for DVD or broadcast, just like film transferred to video.

Shaun Wilson March 5th, 2007 04:46 PM

It's true 24p if you're set at 50Hz right?

Tim Dashwood March 5th, 2007 04:49 PM

Quote:

Originally Posted by Shaun Wilson (Post 636459)
It's true 24p if you're set at 50Hz right?

You can't shoot 24P in 50Hz mode... only 25P, but 25 is 25 and 50 is 50.

Jason Nolte March 6th, 2007 08:59 AM

But 30P is true 30P and not 29.97?

Nate Weaver March 6th, 2007 10:14 AM

No, it's 29.97.

Keep in mind guys that "true" in this case is pretty meaningless. The fractional differences in speed exist so you can work within the digital video world without having to worry about losing sync with all manner of other devices.

It's a good thing, not a bad thing.

The only devices in the world that are locked to only 24.00fps are film projectors.

Mark Silva March 6th, 2007 10:57 AM

I'm so tired of hearing "true" tacked onto everything lately.

It begins to make everything meaningless unless its also true.

Stephen L. Noe March 6th, 2007 04:20 PM

Quote:

Originally Posted by Mark Silva (Post 636937)
I'm so tired of hearing "true" tacked onto everything lately.

It begins to make everything meaningless unless its also true.

But I can understand the question. Some NLE's will literally cut 24fps or 23.98 video. Let's say you're working with a "true" (sorry) 24fps targa frame sequence.


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