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Reverse Telecine Question
I just got footage that was shot 35mm, transferred to 1080p 23.98 HDCAM and then downconverted to DVCAM so I can do the offline edit. We plan to send it out to another facility to do the online back to HDCAM 1080p 23.98. I’ve digitized the footage 29.97 and will reverse telecine it to 23.98 in Cinema Tools.
Now my question is, when I do the settings of reverse telecine, do I need to pay special attention to the field order and getting that right on? There are no indications of which frame is the ‘A’ frame, so I can’t easily set that. Can I just simply reverse it to 23.98, without worrying about the other settings–Will that be a problem when it’s time to online?
Thanks for your suggestions.
Krisi
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6 Replies
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[Krisi] “There are no indications of which frame is the ‘A’ frame, so I can’t easily set that. Can I just simply reverse it to 23.98”
the a frame should be the first frame of the cadence. (2 dupe frames, 3 dupe frames)
Make very sure that CT is set to 23.98 and not 24.O ( the default for CT when launched the first time.)
gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows -
If it was done professionally using standard conventions, all frames with timecode ending in 0 or 5 are “A” frames. This would mean, in any given second, frames 0, 5, 10, 15, 20, and 25.
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Is there a way to tell what field dominance it is, if it’s field 1 only, field 2 only or F1-F2, F2-F1. Or will it just take trial and error to see what looks good?
Does it even matter to get it just right, when I’m only delivering an EDL for online?Krisi
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At http://www.nattress.com there is a helper plugin to help detect cadence. It’s called G Cadence Detect.
https://www.nattress.com/Free/freeFCP.htm
“Nattress plug in to detect cadence:
CT makes you do a lot of hard work. It’s not automagic. You have to tell it the correct starting frame for the pulldown sequence. You can find a free plugin on my site to help with this. You use it in FCP, with the 29.97 footage on a 29.97 timeline, view 100% square pixels turned off so you can see the interlacing. Park on a frame with pretty obvious interlacing, and hit the auto button and it tells you how much to move the offset. Move around a few frames so that you can see if the whole and split frame sequence in the display matches you video. If so, go back to the first frame and read off AA BB etc. and that’s what you enter into CT. “
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IMHO, you should just re-capture the DVCam footage and use hardware pulldown removal from a Kona or BM card. You just tell it where the A frame is in OS X System Prefs. Normally on 0, but you can do trial and error to be sure.
Sean
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If you capture every clip using one of the time code frames I mentioned as your in point (all of the ones ending in 0 and 5) the Cinema Tools defaults will work just fine.
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