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23.98 "Time-Of-Day" timecode

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Hans Hoffman
23.98 "Time-Of-Day" timecode
on Jun 19, 2012 at 10:20:44 pm

I'm post supervisor on a production that starts shooting next week. It is a verite shoot with 3 Sony F800s. The DP wants to shoot 23.98, of course.

Here is the current plan:
The F800 will not shoot 24p so we are going with 23.98p.
Audio will be recorded on a 788T @ 48KHz. The 788T could do either 24 or 23.98, but we're going to set it to 23.98 to match the cameras and use 23.98 timecode.
Since it is a verite shoot we would like all timecode to be time-of-day for easy syncing despite production almost certainly not slating.
Cameras will be jam-synced to audio at least twice per day.
We are posting on AVID MC 5.5.

The problem that I see is that 23.98 TC is not clock accurate. Please confirm or correct me on that.

My initial thought is that if we end up with a 36 second difference between clock time and timecode throughout a 10-hour shoot day, then no big deal as long as all of the machines lose time at the same rate.

I just wanted to check to see if anyone else has done this and if there were problems that I haven't thought of.

Thanks in advance.


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Michael Phillips
Re: 23.98 "Time-Of-Day" timecode
on Jun 20, 2012 at 12:22:44 am

They will all be in sync as they are running at the same fps (23.976) with 24 frame timecode. So you are all set there. There is no such thing as 24DF timecode.

Editing will be 23.976, but you can track 29.97DF count on the sequence side (record TC) to meet deliverables.

Michael

Michael Phillips


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Hans Hoffman
Re: 23.98 "Time-Of-Day" timecode
on Jun 20, 2012 at 6:00:18 pm

Thanks for confirming.


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Daniel Frome
Re: 23.98 "Time-Of-Day" timecode
on Jun 20, 2012 at 5:59:19 pm

Our show shoots with 2 F800's, nearly identical setup what you're describing. We've never had an issue. It will work.


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