Hi John,
If I understand correctly your question, this migh help you.
In one hour, a 30FPS system produces 108 frames more than one running at 29.97FPS. To reconcile this difference, two specific time code frame values are dropped each minute (2x60=120), except every 10th minute (2x60-2x6=108). The time code values dropped are specified as the first two frames of a minute.
Thus, the time code label following01:04:59:29would be01:05:00:02, time code labels01:05:00:00and01:05:00:01don't exist.
Regards,
Agustin Goya
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WANCAMP | POST
+54-11-6545-2427
http://www.wancamp.com.ar/
http://www.linkedin.com/in/agustingoya/
On Sun, Jan 5, 2014 at 7:17 PM, John Moore <bigfish@pacbell.net> wrote:
When I watch the 30 frame code, usually NDF, on a sequence from an NTSC 23.976 project it typically skips the :02 and :07 frames. Now I'm on a project where the TC1 of the sequence is drop frame and it skips ;04 and ;09. Is this because the sequence is drop frame and not the usual non drop frame? The sequence begins at 00;59;50;00 so there is no 2 frame offset between drop and non drop at the 1;00;00;00 point like there is when you have a minute and a half of bars tone and slate. I have taken the sequence and cut it into a new sequence in the 23.976 HD project so that has a proper TC1 of 24 frame code but I'm curious if I'm on the right track as to why the original sequence oddly skipped ;04 and ;09 frames.
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